{"id":28529,"date":"2021-06-26T16:19:01","date_gmt":"2021-06-26T15:19:01","guid":{"rendered":"https:\/\/phillipreeve.net\/blog\/?p=28529"},"modified":"2026-03-24T12:50:14","modified_gmt":"2026-03-24T11:50:14","slug":"review-ttartisan-90mm-1-25","status":"publish","type":"post","link":"https:\/\/phillipreeve.net\/blog\/review-ttartisan-90mm-1-25\/","title":{"rendered":"Review: TTArtisan 90mm 1.25"},"content":{"rendered":"<h2>Introduction<\/h2>\n<figure id=\"attachment_28578\" aria-describedby=\"caption-attachment-28578\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28578\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_title_A7rII.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_title_A7rII.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_title_A7rII-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_title_A7rII-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28578\" class=\"wp-caption-text\">TTArtisan 90mm 1.25 via metabones adapter on Sony A7rII<\/figcaption><\/figure>\n<p>To me the TTArtisan 90mm 1.25 was an unexpected lens, as Leica just recently put a 90mm 1.5 for 14 grand on the shelves, I did not expect anyone offering a faster 90mm M-mount lens. But here we are with a very chunky and massive 90mm 1.25 portrait lens. But is this the new M-mount bokeh king or is the design simply too ambitious? Let us find out in this review!<br \/>\n<em>Lens is being tested on 42mp Sony A7rII and 24mp Leica M10<\/em><\/p>\n<h2>Sample Images<\/h2>\n<figure id=\"attachment_28722\" aria-describedby=\"caption-attachment-28722\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28722\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_23.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_23.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_23-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_23-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28722\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28739\" aria-describedby=\"caption-attachment-28739\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28739 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/L1005725.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/L1005725.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/L1005725-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/L1005725-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28739\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28559\" aria-describedby=\"caption-attachment-28559\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28559\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28559\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p><!--more--><\/p>\n<figure id=\"attachment_28551\" aria-describedby=\"caption-attachment-28551\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28551\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_15.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_15.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_15-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_15-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28551\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28556\" aria-describedby=\"caption-attachment-28556\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28556\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_10.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_10.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_10-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_10-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28556\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p><em>You can find most of the sample pictures from this review <a href=\"https:\/\/www.flickr.com\/photos\/181621809@N02\/albums\/72157719513505295\">here on flickr<\/a> in full resolution.<\/em><\/p>\n\n<h2>Specifications \/ Version History<\/h2>\n<p>The TTArtisan 90mm 1.25 is one of a kind as (at least to my knowledge) there has never been a 90mm lens with a maximum aperture of f\/1.25 before. It has the following specifications:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Diameter: 81 mm<\/li>\n<li>Field of view: 27\u00b0 (diagonally)<\/li>\n<li>Length: 94 mm<\/li>\n<li>Weight: 1020g (without hood and caps)<\/li>\n<li>Filter Diameter: 77 mm<\/li>\n<li>Number of Aperture Blades: 10 (inwardly curved)<\/li>\n<li>Elements\/Groups: 11\/7<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28531 size-medium\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25-300x227.jpg\" alt=\"\" width=\"300\" height=\"227\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25-300x227.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25.jpg 478w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>Close Focusing Distance: 1.0 m<\/li>\n<li>Maximum Magnification: 1:9.7<\/li>\n<li>Mount: Leica-M<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><em>The TTArtisan 90mm 1.25 can be bought new for <strong>$769<\/strong> at <a href=\"https:\/\/ttartisan.myshopify.com\/?ref=EvdGAnf950qaM&amp;fbclid=IwAR0Wz6hHVjawnTBKgVjf4REAAdtlgKqkcjVQOQZIzxzgwGkmQY-iNunnnKc\">the manufacturer&#8217;s shop<\/a>, <a href=\"https:\/\/amzn.to\/3vI06jA\">amazon.com<\/a>, <a href=\"https:\/\/www.ebay.com\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=ttartisan+90mm+1.25&amp;_sacat=0&amp;mkcid=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\" target=\"_blank\" rel=\"noopener\">ebay.com<\/a>\/<a href=\"https:\/\/www.ebay.de\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=TtArtisan+90mm+f%2F1.25&amp;_sacat=0&amp;mkcid=1&amp;mkrid=707-53477-19255-0&amp;siteid=77&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\">ebay.de<\/a> or <a href=\"https:\/\/bhpho.to\/3pgQXMn\">B&amp;H<\/a> (advertisement\/affiliate links).<br \/>\n<\/em><\/p>\n<h2>Handling \/ Build Quality<\/h2>\n<figure id=\"attachment_28581\" aria-describedby=\"caption-attachment-28581\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28581\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_detail.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_detail.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_detail-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_detail-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28581\" class=\"wp-caption-text\">TTArtisan 90mm 1.25<\/figcaption><\/figure>\n<p>From the outer apperance this looks very much like a Leica M lens including the famous red dot. Markings are yellow\/white (engraved and filled with paint), focus ring has a high albeit to me very nice resistance and turns about 160\u00b0 from the minimum focus distance of 1.0 m to infinity.<br \/>\nThe aperture ring has equidistant and rather soft half-stop click stops and feels very tightly assembled.<\/p>\n<figure id=\"attachment_28582\" aria-describedby=\"caption-attachment-28582\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28582\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_bayonet.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_bayonet.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_bayonet-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_bayonet-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28582\" class=\"wp-caption-text\">TTArtisan 90mm 1.25 bayonet and tripod socket<\/figcaption><\/figure>\n<p>The lens features a rangefinder coupling which can be adjusted yourself using a small (supplied) screwdriver. Being an owner of an M-mount camera now I cannot stretch enough what a wonderful design decision this is: the lens can easily be adjusted to be perfectly calibrated to your rangefinder camera and give best possible results without sending it in. I wish every M-mount lens would offer this.<br \/>\nFurthermore the lens features a tiny tripod socket at the bottom, considering the weight of the lens this is not a bad idea.<\/p>\n<figure id=\"attachment_28580\" aria-describedby=\"caption-attachment-28580\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28580\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_hood.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_hood.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_hood-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_hood-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28580\" class=\"wp-caption-text\">TTArtisan 90mm 1.25 with screw-in hood attached<\/figcaption><\/figure>\n<p>The hood left me wondering a bit. It is made from metal and has felt on the inside and at first it felt like it was retractable. But it does actually come off and can then be screwed in like a normal screw in hood. It would have been very little effort to make it into a retractable lens hood, so I really wonder why they went with this design (and you want to use the hood, more on that later).<\/p>\n<figure id=\"attachment_28576\" aria-describedby=\"caption-attachment-28576\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28576\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Zhong_Yi_1.5_Leica_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"389\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Zhong_Yi_1.5_Leica_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Zhong_Yi_1.5_Leica_2.0-300x146.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Zhong_Yi_1.5_Leica_2.0-768x373.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28576\" class=\"wp-caption-text\">TTArtisan 90mm 1.25 &#8211; Zhong Yi 90mm 1.5 &#8211; Leica 90mm 2.0 pre Asph<\/figcaption><\/figure>\n<p>As can be seen from the comparison above this is the chunkiest of the 90mm M-mount lenses (the Leica 90mm 1.5 Summilux-M is pretty much the same size as the Zhong Yi in the center).<\/p>\n<h2>Vignetting<\/h2>\n<h3>light falloff<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28545 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/vignetting_TTartisan_90mm_1.25-1.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"750\" height=\"610\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/vignetting_TTartisan_90mm_1.25-1.jpg 750w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/vignetting_TTartisan_90mm_1.25-1-300x244.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n\n<table id=\"tablepress-31\" class=\"tablepress tablepress-id-31\">\n<tbody class=\"row-striping\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">f\/1.25<\/td><td class=\"column-2\">2.3 EV<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">f\/1.4<\/td><td class=\"column-2\">1.9 EV<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">f\/2.0<\/td><td class=\"column-2\">1.4 EV<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">f\/2.8<\/td><td class=\"column-2\">1.0 EV<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">f\/8.0<\/td><td class=\"column-2\">1.0 EV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-31 from cache -->\n<p>Vignetting is about average for a lens with these parameters.<\/p>\n<figure id=\"attachment_31066\" aria-describedby=\"caption-attachment-31066\" style=\"width: 1026px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31066\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2022\/02\/TTA_90mm_1.25.png\" alt=\"\" width=\"1026\" height=\"766\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2022\/02\/TTA_90mm_1.25.png 1026w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2022\/02\/TTA_90mm_1.25-300x224.png 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2022\/02\/TTA_90mm_1.25-800x597.png 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2022\/02\/TTA_90mm_1.25-768x573.png 768w\" sizes=\"auto, (max-width: 1026px) 100vw, 1026px\" \/><figcaption id=\"caption-attachment-31066\" class=\"wp-caption-text\">TTArtisan 90mm 1.25<\/figcaption><\/figure>\n<p><em>It is recommended to have a look at <a href=\"https:\/\/phillipreeve.net\/blog\/vignetting-graphs-explained\/\">this article<\/a> first to get an idea how this brightness graph works.<\/em><\/p>\n<h3>optical vignetting<\/h3>\n<p>Very fast lenses usually show a significant amount of optical vignetting. Without going too much into technical details optical vignetting leads to the truncation of light circles towards the borders of the frame.<br \/>\nIn the center of the frame almost every lens will render a perfect circle, but only lenses with very low optical vignetting will keep this shape in the corners.<br \/>\nSo in the following comparison we move from the center (left) to the extreme corner (right) and see how the shape of the light circle changes.<\/p>\n<div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-1-review-ttartisan-90mm-1-25-20624\"><li class=\"active\"><a href=\"#ert_pane1-0\" data-toggle=\"tab\">TTA 90mm f\/1.25 @f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane1-1\" data-toggle=\"tab\">TTA 90mm f\/1.25 @f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane1-2\" data-toggle=\"tab\">ZY 90mm 1.5 @f\/1.5<\/a><\/li><li class=\"\"><a href=\"#ert_pane1-3\" data-toggle=\"tab\">ZY 90mm 1.5 @f\/2.0<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-1-review-ttartisan-90mm-1-25-20624\"><li class=\"tab-pane active\" id=\"ert_pane1-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28632 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"200\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_1.25-300x75.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_1.25-768x192.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane1-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28631 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"200\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_2.0-300x75.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_TTArtisan_90mm_1.25_2.0-768x192.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane1-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28630 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_1.5.jpg\" alt=\"zhong yi 90mm 1.5 f\/1.5 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"200\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_1.5.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_1.5-300x75.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_1.5-768x192.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane1-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28629 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_2.0.jpg\" alt=\"zhong yi 90mm 1.5 f\/1.5 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"200\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_2.0-300x75.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/optical_vignetting_Zhong_yi_90mm_1.5_2.0-768x192.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div>\n<p>&nbsp;<\/p>\n<p>The optical vignetting towards the corners is clearly noticeable, but this is the case for almost all lenses with comparable parameters. The <a href=\"https:\/\/phillipreeve.net\/blog\/review-sony-fe-85mm-1-4-gm\/\">Sony FE 85mm 1.4 GM<\/a> is one of the few lenses that is showing an above average performance here.<\/p>\n<p>For comparison&#8217;s sake I added the Zhong Yi 90mm 1.5 here. The TTArtisan 90mm 1.25 shows slightly less optical vignetting in the corners, but stopped down the shape of the aperture blades is quite distracting, whereas the Zhong Yi&#8217;s aperture blades keep the highlights mostly round. Both lenses do not feature aspherical elements, therefore there are no onion ring structures visible.<\/p>\n<p><em>I did shoot both lenses side by side, focus distance was 1.1 m.<\/em><\/p>\n<h2>Sharpness<\/h2>\n<h3>infinity (42mp Sony A7rII)<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-28625\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"2144\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2-112x300.jpg 112w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2-478x1280.jpg 478w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2-768x2058.jpg 768w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2-573x1536.jpg 573w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_R2-764x2048.jpg 764w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>At maximum aperture the lens is surprisingly contrasty in the center for an f\/1.25 lens.<\/p>\n<p>The midframe starts noticeably softer and needs f\/4.0 to look really good.<\/p>\n<p>The corners may suffer due to the thick Sony filter stack, as they never look really great, even stopped down to f\/11.<\/p>\n<p>If you are a Sony user and you are looking for a manual focus lens with great infinity performance at wider apertures the <a href=\"https:\/\/phillipreeve.net\/blog\/rolling-review-zeiss-loxia-85mm-2-4\/\">Zeiss Loxia 85mm 2.4<\/a> is probably the lens you shoud have a closer look at.<\/p>\n<p>Let us see what changes when using this lens on the Leica M10 with its thinner filter stack.<\/p>\n<h3>infinity (24mp Leica M10)<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28624 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"2143\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10-112x300.jpg 112w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10-478x1280.jpg 478w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10-768x2057.jpg 768w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10-573x1536.jpg 573w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/Sharpness_TTArtisan_90mm_1.25_M10-765x2048.jpg 765w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>On the Leica M10 with its thinner sensor stack midframe and corners show a better performance, so even though the corners do not reach the same level as the midframe areas, you may be happy with the stopped down corners at f\/11 for more demanding architecture or landscape work.<\/p>\n<h3>portrait distance (2.3 m)<\/h3>\n<p>For portraiture it isn&#8217;t so important how flat the field is, it is more interesting to see what the sharpness is like when focused at different parts of the frame to take field curvature (and also focus shift) out of the equation.<\/p>\n<figure id=\"attachment_20406\" aria-describedby=\"caption-attachment-20406\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-20406\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2019\/08\/portrait_distance.png\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2019\/08\/portrait_distance.png 3000w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2019\/08\/portrait_distance-300x200.png 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2019\/08\/portrait_distance-768x512.png 768w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2019\/08\/portrait_distance-800x533.png 800w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20406\" class=\"wp-caption-text\">positions of crops in the frame<\/figcaption><\/figure>\n<p>This is what I did here, I refocused for every shot and aperture to get the best possible result at different locations in the frame (center, inner midframe and outer midframe).<br \/>\nFocus distance was roughly 2.3 m and the circle of the dollar bill is more or less the size of a human eye.<\/p>\n<p><strong>Sony A7III &lt;\u2014&gt; Leica M10<\/strong><\/p>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-2-review-ttartisan-90mm-1-25-79308\"><li class=\"active\"><a href=\"#ert_pane2-0\" data-toggle=\"tab\">center f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane2-1\" data-toggle=\"tab\">center f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane2-2\" data-toggle=\"tab\">inner midframe f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane2-3\" data-toggle=\"tab\">inner midframe f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane2-4\" data-toggle=\"tab\">outer midframe f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane2-5\" data-toggle=\"tab\">outer midframe f\/2.0<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-2-review-ttartisan-90mm-1-25-79308\"><li class=\"tab-pane active\" id=\"ert_pane2-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28592 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_1.25.jpg\" alt=\"\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_1.25.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_1.25-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_1.25-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane2-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28591 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_2.0.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_2.0-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_center_2.0-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane2-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28590 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_1.25.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_1.25-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_1.25-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane2-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28589 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_2.0.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_2.0-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_imidframe_2.0-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane2-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28588 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_1.25.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_1.25-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_1.25-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane2-5\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28587 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"780\" height=\"390\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_2.0.jpg 780w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_2.0-300x150.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_2.3m_omidframe_2.0-768x384.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<em><span style=\"color: #999999;\">100% crops, Sony A7III, Leica M10<\/span><br \/>\n<\/em><\/p>\n<p>Many of the really fast lenses without a floating elements design have issues with spherical aberration (&#8220;glow&#8221;) at closer distances, comparing the f\/1.25 and f\/2.0 center crops we see this is still the case at 2.3 m, as the lens is rather soft at the maxium aperture. It is also one of those lenses where the plane with maximum contrast is not the same as the one with maximum resolution, which makes focusing a bit harder.<\/p>\n<p>Astigmatism is rather well corrected though, so you get a softer look, but resolution should be good enough for most applications also when placing your subject in the midframe area.<\/p>\n<h3><em>close (1.0 m, 1:9.6)<\/em><\/h3>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-3-review-ttartisan-90mm-1-25-17330\"><li class=\"active\"><a href=\"#ert_pane3-0\" data-toggle=\"tab\">f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane3-1\" data-toggle=\"tab\">f\/1.4<\/a><\/li><li class=\"\"><a href=\"#ert_pane3-2\" data-toggle=\"tab\">f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane3-3\" data-toggle=\"tab\">f\/2.8<\/a><\/li><li class=\"\"><a href=\"#ert_pane3-4\" data-toggle=\"tab\">f\/4.0<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-3-review-ttartisan-90mm-1-25-17330\"><li class=\"tab-pane active\" id=\"ert_pane3-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28611 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.25-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane3-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28612 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.4.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.4.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.4-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_1.4-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane3-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28610 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane3-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28609 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.8.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.8.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.8-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_2.8-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane3-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28608 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_4.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_4.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_4.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sharpness_close_4.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<em><span style=\"color: #999999;\">Sony A7rII | TTArtisan 90mm 1.25 | 100% crops from center<\/span><br \/>\n<\/em><\/p>\n<p>The TTArtisan 90mm 1.25 does not feature a floating elements design, so the high amount of spherical aberration at the maximum aperture should not come as a surprise. Therefore &#8211; if you are not into a very soft look &#8211; it is a good idea to stop down to f\/2.8 when taking close up shots.<\/p>\n<h2>Flare resistance<\/h2>\n<figure id=\"attachment_28733\" aria-describedby=\"caption-attachment-28733\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28733\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_28.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_28.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_28-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_28-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28733\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p>The super fast lenses from Zhong Yi, TTArtisan and 7Artisans haven&#8217;t been the greatest performers in terms of flare resistance in the past and it seems the TTArtisan 90mm 1.25 continues that trend.<\/p>\n<p>When shooting directly into the sun, especially at wider apertures, you will encounter all kinds of artefacts, rainbow crescents, ghosts, internal reflections.<\/p>\n<div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-4-review-ttartisan-90mm-1-25-84562\"><li class=\"active\"><a href=\"#ert_pane4-0\" data-toggle=\"tab\">artefacts f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane4-1\" data-toggle=\"tab\">veiling flare f\/1.25 (no hood)<\/a><\/li><li class=\"\"><a href=\"#ert_pane4-2\" data-toggle=\"tab\">veiling flare f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane4-3\" data-toggle=\"tab\">ghosts f\/11<\/a><\/li><li class=\"\"><a href=\"#ert_pane4-4\" data-toggle=\"tab\">blue hour f\/1.25<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-4-review-ttartisan-90mm-1-25-84562\"><li class=\"tab-pane active\" id=\"ert_pane4-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28559 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_7-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane4-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28561 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_5.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_5.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_5-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_5-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane4-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28557 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_9.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_9.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_9-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_9-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane4-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28726 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_stoppedown.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_stoppedown.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_stoppedown-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_stoppedown-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane4-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28727 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_night.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_night.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_night-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/ttartisan_90mm_1.25_flare_sample_night-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div>\n<p>&nbsp;<\/p>\n<p>What I found more bothersome in the field is the high amount of veiling flare though, as even in situations without strong point light sources you will often see it.<br \/>\nSome people might even think it is a low contrast lens because of this, but when shooting scenes without any stray light the contrast&nbsp; actually isn&#8217;t low.<\/p>\n<p>The hood isn&#8217;t really helping, despite being one of the better designs with felt on the inside. I think it would need to be longer to be actually effective. I often shaded the lens with my hand to get rid of some of the veiling flare.<\/p>\n<h2>Coma<\/h2>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-5-review-ttartisan-90mm-1-25-28049\"><li class=\"active\"><a href=\"#ert_pane5-0\" data-toggle=\"tab\">f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-1\" data-toggle=\"tab\">f\/1.4<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-2\" data-toggle=\"tab\">f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-3\" data-toggle=\"tab\">f\/2.8<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-4\" data-toggle=\"tab\">f\/4.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-5\" data-toggle=\"tab\">f\/5.6<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-6\" data-toggle=\"tab\">f\/8.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane5-7\" data-toggle=\"tab\">f\/11<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-5-review-ttartisan-90mm-1-25-28049\"><li class=\"tab-pane active\" id=\"ert_pane5-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28653 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.25-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28654 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.4.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.4.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.4-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_1.4-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28652 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28651 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.8.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.8.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.8-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_2.8-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28650 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_4.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_4.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_4.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_4.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-5\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28649 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_5.6.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_5.6.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_5.6-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_5.6-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-6\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28648 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_8.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_8.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_8.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_8.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane5-7\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28647 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_11.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_11.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_11-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_coma_crop_11-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<em><span style=\"color: #999999;\">Sony A7rII | TTArtisan 90mm 1.25 | 100% crops from extreme corner<\/span><br \/>\n<\/em><\/p>\n<p>Having a look at the sharpness infinity charts it should not come as a surprise that we have to deal with significant amounts of coma and astigmatism in the corners. It really takes stopping down to f\/11 to get clean corners.<\/p>\n<h2>Distortion<\/h2>\n<figure id=\"attachment_28686\" aria-describedby=\"caption-attachment-28686\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28686\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTA_90_1.25_distortion_uncorrected.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness coma astigmatism\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTA_90_1.25_distortion_uncorrected.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTA_90_1.25_distortion_uncorrected-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTA_90_1.25_distortion_uncorrected-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28686\" class=\"wp-caption-text\">Leica M10 | TTArtisan f\/1.25 | f\/2.8<\/figcaption><\/figure>\n<p>The TTArtisan 90mm 1.25 shows low but slighly wavy distortion. There is no profile for correction available yet in Lightroom.<\/p>\n<h2>Bokeh<\/h2>\n<figure id=\"attachment_28562\" aria-describedby=\"caption-attachment-28562\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28562\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_4.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_4.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_4-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_4-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28562\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p>We are dealing with a 90mm lens with a maximum aperture of f\/1.25, so I guess most of you jumped straight to this section.<\/p>\n<p>This 90mm f\/1.25 should be the M-mount lens with the biggest entrance pupil yet, so we are at the limit of what is technically possible here. After the 75mm f\/1.25 even Leica did not dare to make their 90mm an f\/1.25 lens but rather sticked to f\/1.5.<br \/>\nKnowing a thing or two about lenses [citation needed] I therefore expected some swirl (high optical vignetting) and maybe some field curvature towards the corners. So let us have a look if I was right about these, investigating the lens&#8217; behaviour at different focus distances.<\/p>\n<h3>Close Distance<\/h3>\n<figure id=\"attachment_28565\" aria-describedby=\"caption-attachment-28565\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28565\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_1.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_1.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_1-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_1-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28565\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28720\" aria-describedby=\"caption-attachment-28720\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28720\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_25-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28720\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p>When taking pictures near the minimum focus distance the background melts away and even though cat&#8217;s eyes are noticeable, they are not overly pronounced here.<\/p>\n<h3>Mid Distance<\/h3>\n<figure id=\"attachment_28723\" aria-describedby=\"caption-attachment-28723\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28723\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_22.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_22.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_22-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_22-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28723\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28555\" aria-describedby=\"caption-attachment-28555\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28555\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_11.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_11.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_11-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_11-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28555\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28568\" aria-describedby=\"caption-attachment-28568\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28568\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_21.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_21.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_21-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_21-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28568\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p>At medium distances the bokeh in the center is still butterly smooth, but deteoriates a bit towards the corners, as was expected. You start to see some slight doubled edged structures here, but they are mostly undistracting still.<\/p>\n<h3>Long Distance<\/h3>\n<figure id=\"attachment_28721\" aria-describedby=\"caption-attachment-28721\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28721\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_24.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_24.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_24-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_24-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28721\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28567\" aria-describedby=\"caption-attachment-28567\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28567\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_20.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_20.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_20-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_20-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28567\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28563\" aria-describedby=\"caption-attachment-28563\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28563\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_3.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_3.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_3-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_3-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28563\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28560\" aria-describedby=\"caption-attachment-28560\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28560\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_6.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_6.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_6-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_6-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28560\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p>At longer focus distances you can spot some obvious deteoriation and swirl towards the corners. There is probably also some field curvature involved, pulling things in the corners &#8211; that are farther away from your subject &#8211; almost back into the focal plane.<\/p>\n<p>The TTArtisan 90mm 1.25 is doing a better job at these distances than e.g. the <a href=\"https:\/\/phillipreeve.net\/blog\/review-ms-optics-73mm-1-5-sonnetar\/\">MS-Optics 73mm 1.5 Sonnetar<\/a> and behaves similar to the much easier to design <a href=\"https:\/\/phillipreeve.net\/blog\/review-leica-90mm-2-0-summicron-m\/\">Leica 90mm 2.0 pre Asph<\/a>, but it doesn&#8217;t offer as smooth across frame bokeh as the latest first party lenses optimized for that like the <a href=\"https:\/\/phillipreeve.net\/blog\/review-sony-fe-85mm-1-4-gm\/\">Sony FE 85mm 1.4 GM<\/a>.<br \/>\nAnd we should credit the TTArtisan lens for having a 20% bigger entrance pupil compared to an 85mm f\/1.4 lens, which is a lot actually.<\/p>\n<h2>Sunstars<\/h2>\n<div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-6-review-ttartisan-90mm-1-25-53975\"><li class=\"active\"><a href=\"#ert_pane6-0\" data-toggle=\"tab\">f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-1\" data-toggle=\"tab\">f\/1.4<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-2\" data-toggle=\"tab\">f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-3\" data-toggle=\"tab\">f\/2.8<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-4\" data-toggle=\"tab\">f\/4.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-5\" data-toggle=\"tab\">f\/5.6<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-6\" data-toggle=\"tab\">f\/8.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-7\" data-toggle=\"tab\">f\/11<\/a><\/li><li class=\"\"><a href=\"#ert_pane6-8\" data-toggle=\"tab\">f\/16<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-6-review-ttartisan-90mm-1-25-53975\"><li class=\"tab-pane active\" id=\"ert_pane6-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28644 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.25-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28645 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.4.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.4.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.4-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_1.4-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28643 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28642 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.8.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.8.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.8-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_2.8-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28641 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_4.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_4.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_4.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_4.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-5\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28640 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_5.6.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_5.6.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_5.6-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_5.6-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-6\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28639 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_8.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_8.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_8.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_8.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-7\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28638 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_11.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_11.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_11-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_11-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane6-8\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28637 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_16.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness sunstar sunstars blendenstern\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_16.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_16-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_sunstars_16-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div>\n<p>The TTArtisan features 10 aperture blades (as do the Zeiss Loxia or Voigtl\u00e4nder lenses) but the alignment of the blades is not perfect, therefore the sunstars are frayed. This should not be a big deal for most portrait applications though.<\/p>\n<p>If you want to learn more about this topic have a look at <a href=\"https:\/\/phillipreeve.net\/blog\/best-lenses-for-sunstars\/\">this article<\/a>.<\/p>\n<h2>Chromatic aberrations<\/h2>\n<h3>lateral<\/h3>\n<p>In the corners you can spot a low amount of lateral CAs which can be easily corrected in post, as can be seen in the example below (100% crop)..<\/p>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-7-review-ttartisan-90mm-1-25-64496\"><li class=\"active\"><a href=\"#ert_pane7-0\" data-toggle=\"tab\">uncorrected<\/a><\/li><li class=\"\"><a href=\"#ert_pane7-1\" data-toggle=\"tab\">corrected<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-7-review-ttartisan-90mm-1-25-64496\"><li class=\"tab-pane active\" id=\"ert_pane7-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28740 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_uncorrected.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_uncorrected.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_uncorrected-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_uncorrected-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane7-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28741 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_corrected.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_corrected.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_corrected-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_lateral_CA_corrected-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<span style=\"color: #999999;\"><em>100% crops from extreme corner, A7<\/em><\/span><\/p>\n<h3>longitudinal<\/h3>\n<figure id=\"attachment_28616\" aria-describedby=\"caption-attachment-28616\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28616 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28616\" class=\"wp-caption-text\">Sony A7rII | TTArtisan 90mm 1.25 | f\/1.25 | 50% crop<\/figcaption><\/figure>\n<p>I often use close up shots like the one above to highlight longitudinal CA, but in the case of this TTArtisan 90mm 1.25 the spherical aberration is so high that it completely masks them, so we directly have a look what it looks like at longer focus distances.<em><br \/>\n<\/em><\/p>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-8-review-ttartisan-90mm-1-25-93522\"><li class=\"active\"><a href=\"#ert_pane8-0\" data-toggle=\"tab\">overview<\/a><\/li><li class=\"\"><a href=\"#ert_pane8-1\" data-toggle=\"tab\">crop foreground<\/a><\/li><li class=\"\"><a href=\"#ert_pane8-2\" data-toggle=\"tab\">crop background<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-8-review-ttartisan-90mm-1-25-93522\"><li class=\"tab-pane active\" id=\"ert_pane8-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28731 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane8-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28730 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop1.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop1.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop1-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop1-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane8-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28729 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop2.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop2.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop2-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_loca_crop2-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<span style=\"color: #999999;\"><em>Sony A7III | TTArtisan 90mm 1.25 | f\/1.25<\/em><\/span><\/p>\n<p>A small amount of loCA are visible, but they are well less pronounced than I would have expected. There are many way easier to design lenses (e.g. <a href=\"https:\/\/phillipreeve.net\/blog\/sony-fe-1-855-za-sonnar-t-review\/\">Sony FE 55mm 1.8 ZA<\/a> or <a href=\"https:\/\/phillipreeve.net\/blog\/review-sony-fe-35mm-1-4-za\/\">Sony FE 35mm 1.4 ZA<\/a>) that do way worse.<\/p>\n<h2>Focus shift<\/h2>\n<p><div class=\"osc-res-tab tabbable   osc-tabs-left\"><div style=\"clear:both;width: 100%;\"><ul class=\"nav osc-res-nav nav-tabs osc-tabs-left-ul\" id=\"oscitas-restabs-9-review-ttartisan-90mm-1-25-20394\"><li class=\"active\"><a href=\"#ert_pane9-0\" data-toggle=\"tab\">f\/1.25<\/a><\/li><li class=\"\"><a href=\"#ert_pane9-1\" data-toggle=\"tab\">f\/1.4<\/a><\/li><li class=\"\"><a href=\"#ert_pane9-2\" data-toggle=\"tab\">f\/2.0<\/a><\/li><li class=\"\"><a href=\"#ert_pane9-3\" data-toggle=\"tab\">f\/2.8<\/a><\/li><li class=\"\"><a href=\"#ert_pane9-4\" data-toggle=\"tab\">f\/2.8 refocused<\/a><\/li><\/ul><\/div><div style=\"clear:both;width: 100%;\"><ul class=\"tab-content\" id=\"oscitas-restabcontent-9-review-ttartisan-90mm-1-25-20394\"><li class=\"tab-pane active\" id=\"ert_pane9-0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28616 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.25-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane9-1\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28617 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.4.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.4.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.4-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_1.4-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane9-2\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28615 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.0.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.0.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.0-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.0-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane9-3\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28614 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><li class=\"tab-pane \" id=\"ert_pane9-4\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-28613 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8_refocused.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"534\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8_refocused.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8_refocused-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_focus_shift_2.8_refocused-768x513.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/li><\/ul><\/div><\/div><br \/>\n<span style=\"color: #999999;\"><em>50% crops, A7rII<\/em><\/span><\/p>\n<p>As I already told you the plane of maximum contrast is not the same as the one with maximum resolution, which in the past often hinted at focus shift and indeed there is noticeable focus shift.<br \/>\nThis is bad news when using the rangefinder to focus, but then, why buy a 1 kg 90mm f\/1.25 lens when you don&#8217;t intend to use it at f\/1.25 most of the time?<\/p>\n<p>So if possible stick to liveview for critical focus when using the lens stopped down a bit.<\/p>\n<h2>Alternatives<\/h2>\n<h3>M-Mount<\/h3>\n<p><strong>Leica 90mm 1.5 Summilux-M:<\/strong><br \/>\nLeica&#8217;s fast 90mm M-mount lens. I expect better contrast and flare resistance, but that comes at an 18 times higher price.<br \/>\n<em>buy from <a href=\"https:\/\/www.ebay.com\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=leica+90mm+1.5&amp;_sacat=0&amp;mkcid=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\" target=\"_blank\" rel=\"noopener\">ebay.com<\/a> |&nbsp;<a href=\"https:\/\/www.ebay.de\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=leica+90mm+1.5&amp;_sacat=0&amp;mkcid=1&amp;mkrid=707-53477-19255-0&amp;siteid=77&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\">ebay.de<\/a> | <a href=\"https:\/\/bhpho.to\/3vHjoVr\">B&amp;H<\/a> new for <strong>$13.695<\/strong> (advertisement\/affiliate links)<\/em><\/p>\n<p><a href=\"https:\/\/phillipreeve.net\/blog\/review-zhong-yi-90mm-1-5-m\/\"><strong>Zhong Yi 90mm 1.5 M:<\/strong><\/a><br \/>\nThe Zhong Yi 90mm 1.5 is more reasonably sized, a bit cheaper and the sharper lens. Differences in bokeh are not huge and I prefer the TTArtisan&#8217;s build quality.<br \/>\n<em>buy from the <a href=\"https:\/\/zyoptics.net\/product\/mitakon-speedmaster-90-f-1-5-lens\/?ref=BastianK\">manufacturer&#8217;s homepage<\/a> | <a href=\"https:\/\/bhpho.to\/3Tm0dMM\">B&amp;H<\/a> | <a href=\"https:\/\/www.ebay.com\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=zhong+yi+90mm+1.5&amp;_sacat=0&amp;mkcid=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\">ebay.com<\/a> | <a href=\"https:\/\/amzn.to\/3Uvizwg\">amazon.com<\/a> for <strong>$399<\/strong> (advertisement\/affiliate links)<\/em><\/p>\n<p><a href=\"https:\/\/phillipreeve.net\/blog\/review-voigtlander-75mm-f1-5-vm\/\"><strong>Voigtlander VM 75mm 1.5 Nokton:<\/strong><\/a><br \/>\nThe difference in focal length is of course noticeable, but so is the weight difference. If you are looking for a really compact M-mount portrait lens, have a look at this one.<br \/>\n<em>buy from <a href=\"https:\/\/amzn.to\/2MNpFgf\">amazon.com<\/a> | <a href=\"https:\/\/amzn.to\/2Ln10Ma\">amazon.de<\/a> | <a href=\"https:\/\/bhpho.to\/2ZGdp76\">B&amp;H<\/a> | <a href=\"https:\/\/www.ebay.com\/sch\/i.html?LH_CAds=&amp;_ex_kw=&amp;_fpos=&amp;_fspt=1&amp;_mPrRngCbx=1&amp;_nkw=voigtlander+75mm+1.5&amp;_sacat=625&amp;_sadis=&amp;_sop=12&amp;_udhi=&amp;_udlo=&amp;_fosrp=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;mkcid=1&amp;campid=5337820268&amp;toolid=10001&amp;customid=&amp;mkevt=1\">ebay.com<\/a> | <a href=\"https:\/\/www.ebay.de\/sch\/i.html?_ex_kw=&amp;_mPrRngCbx=1&amp;_nkw=voigtlander+75mm+1.5&amp;_sacat=625&amp;_sop=12&amp;_udhi=&amp;_udlo=&amp;_fosrp=1&amp;mkrid=707-53477-19255-0&amp;siteid=77&amp;mkcid=1&amp;campid=5337820268&amp;toolid=10001&amp;customid=&amp;mkevt=1\">ebay.de<\/a> for <strong>$999<\/strong> (advertisement\/affiliate links)<\/em><\/p>\n<p><a href=\"https:\/\/phillipreeve.net\/blog\/review-leica-90mm-2-0-summicron-m\/\"><strong>Leica 90mm 2.0 Summicron-M pre-Asph:<\/strong><\/a><br \/>\nUsed the Leica 90mm 2.0 Summicron-M pre-Asph is similarly priced. It is more than a stop slower but also way more compact and in terms of size and weight a better fit to the M-system.<br \/>\n<em>buy from <a href=\"https:\/\/www.ebay.com\/sch\/i.html?LH_CAds=&amp;_ex_kw=&amp;_fpos=&amp;_fspt=1&amp;_mPrRngCbx=1&amp;_nkw=summicron+90&amp;_sacat=625&amp;_sadis=&amp;_sop=12&amp;_udhi=&amp;_udlo=&amp;_fosrp=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;mkcid=1&amp;campid=5337820268&amp;toolid=10001&amp;customid=&amp;mkevt=1\" target=\"_blank\" rel=\"noopener\">ebay.com<\/a>\/<a href=\"https:\/\/www.ebay.de\/sch\/i.html?_ex_kw=&amp;_mPrRngCbx=1&amp;_nkw=summicron+90&amp;_sacat=625&amp;_sop=12&amp;_udhi=&amp;_udlo=&amp;_fosrp=1&amp;mkrid=707-53477-19255-0&amp;siteid=77&amp;mkcid=1&amp;campid=5337820268&amp;toolid=10001&amp;customid=&amp;mkevt=1\" target=\"_blank\" rel=\"noopener\">ebay.de<\/a> (advertisement\/affiliate links) for <strong>$700<\/strong><\/em><\/p>\n<h3>E-mount<\/h3>\n<p>There are plenty of native options available, covered in our <a href=\"https:\/\/phillipreeve.net\/blog\/user-guide-to-portrait-lenses-sony-a7-series\/\">guide to 85-135mm portrait lenses<\/a> which will give you a good overview.<\/p>\n<h2>Conclusion<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>good<\/strong><\/p>\n<ul>\n<li><span style=\"color: #339966;\">bokeh (mostly)<\/span><\/li>\n<li><span style=\"color: #339966;\">sharpness (portrait distance)<\/span><\/li>\n<li><span style=\"color: #339966;\">CA correction (barely)<\/span><\/li>\n<li><span style=\"color: #339966;\">build quality<\/span><\/li>\n<\/ul>\n<\/td>\n<td><strong>average<\/strong><\/p>\n<ul>\n<li>distortion<\/li>\n<li>size\/weight<\/li>\n<li>price<\/li>\n<\/ul>\n<\/td>\n<td><strong>not good<\/strong><\/p>\n<ul>\n<li><span style=\"color: #ff0000;\">flare resistance<\/span><\/li>\n<li><span style=\"color: #ff0000;\">coma correction<\/span><\/li>\n<li><span style=\"color: #ff9900;\">&#8220;ninja star&#8221; aperture diaphragm<\/span><\/li>\n<li><span style=\"color: #ff9900;\">focus shift<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A 90mm f\/1.25 with its 72mm entrance pupil is situated on the edge of what can be realised for M-mount, therefore I was expecting some optical compromises and indeed there are: flare resistance leaves something to be desired as does the performance near the minimum focus distance as well as at infinity. The latter are not that bothersome for portrait photography, but the ninja star aperture blades do bother me a bit here and those using an M-mount camera without liveview may be bothered by focus shift, too.<\/p>\n<figure id=\"attachment_28579\" aria-describedby=\"caption-attachment-28579\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28579\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Leica_M10.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"450\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Leica_M10.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Leica_M10-300x169.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Leica_M10-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28579\" class=\"wp-caption-text\">TTArtisan 90mm 1.25 on Leica M10<\/figcaption><\/figure>\n<p>Despite this I am pretty sure the TTArtisan 90mm f\/1.25 will prove to be a popular lens just like the <a href=\"https:\/\/phillipreeve.net\/blog\/review-ttartisan-50mm-0-95\/\">TTArtisan 50mm f\/0.95<\/a> before. The combination of unique specs and fair price makes it appealing to many potential buyers, I could even see some trusty Leica users getting one of these lenses for the fun of having a large aperture lens, but without having to invest 5 figures for one of Leica&#8217;s offerings.<\/p>\n<p><em>The TTArtisan 90mm 1.25 can be bought new for <strong>$769<\/strong> at <a href=\"https:\/\/ttartisan.myshopify.com\/?ref=EvdGAnf950qaM&amp;fbclid=IwAR0Wz6hHVjawnTBKgVjf4REAAdtlgKqkcjVQOQZIzxzgwGkmQY-iNunnnKc\">the manufacturer&#8217;s shop<\/a>, <a href=\"https:\/\/amzn.to\/3vI06jA\">amazon.com<\/a>, <a href=\"https:\/\/www.ebay.com\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=ttartisan+90mm+1.25&amp;_sacat=0&amp;mkcid=1&amp;mkrid=711-53200-19255-0&amp;siteid=0&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\" target=\"_blank\" rel=\"noopener\">ebay.com<\/a>\/<a href=\"https:\/\/www.ebay.de\/sch\/i.html?_from=R40&amp;_trksid=p2380057.m570.l1313&amp;_nkw=TtArtisan+90mm+f%2F1.25&amp;_sacat=0&amp;mkcid=1&amp;mkrid=707-53477-19255-0&amp;siteid=77&amp;campid=5337820268&amp;toolid=20008&amp;mkevt=1\">ebay.de<\/a> or <a href=\"https:\/\/bhpho.to\/3pgQXMn\">B&amp;H<\/a> (advertisement\/affiliate links).<\/em><\/p>\n<h2>Sample Images<\/h2>\n<figure id=\"attachment_28719\" aria-describedby=\"caption-attachment-28719\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28719\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_26.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"497\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_26.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_26-300x186.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_26-768x477.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28719\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28718\" aria-describedby=\"caption-attachment-28718\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28718\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_27.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_27.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_27-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_27-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28718\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28550\" aria-describedby=\"caption-attachment-28550\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28550\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_18.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_18.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_18-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_18-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28550\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28732\" aria-describedby=\"caption-attachment-28732\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28732\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_30.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_30.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_30-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTartisan_90mm_1.25_sample_30-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28732\" class=\"wp-caption-text\">Sony A7III | TTArtisan 90mm 1.25 | f\/5.6<\/figcaption><\/figure>\n<figure id=\"attachment_28553\" aria-describedby=\"caption-attachment-28553\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28553\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_13.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_13.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_13-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_13-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28553\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<figure id=\"attachment_28558\" aria-describedby=\"caption-attachment-28558\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-28558\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_8.jpg\" alt=\"ttartisan 90mm 1.25 f\/1.25 review test comparison leica m m10 m10r m9 sony a7rii 42mp 24mp contrast bokeh sharpness\" width=\"800\" height=\"533\" srcset=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_8.jpg 800w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_8-300x200.jpg 300w, https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2021\/06\/TTArtisan_90mm_1.25_Sample_Leica_8-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-28558\" class=\"wp-caption-text\">Leica M10 | TTArtisan 90mm 1.25 | f\/1.25<\/figcaption><\/figure>\n<p><em>You can find most of the sample pictures from this review <a href=\"https:\/\/www.flickr.com\/photos\/181621809@N02\/albums\/72157719513505295\">here on flickr<\/a> in full resolution.<\/em><\/p>\n<h2>Further Reading<\/h2>\n<ul>\n<li><a href=\"https:\/\/phillipreeve.net\/blog\/fe-lenses-sony-comprehensive-independent-guide\/\">Sony FE lenses: Our comprehensive and independent guide<\/a><\/li>\n<li><a href=\"https:\/\/phillipreeve.net\/blog\/user-guide-to-portrait-lenses-sony-a7-series\/\">Guide to the best 85-135mm Portrait Lenses for Sony a7 series<\/a><\/li>\n<li><a href=\"https:\/\/phillipreeve.net\/blog\/review-sigma-35mm-1-2-art-dg-dn\/\">Review: MS-Optics 50mm 1.0 ISM<\/a><\/li>\n<li><a href=\"https:\/\/phillipreeve.net\/blog\/review-leica-apo-telyt-m-135mm-3-4\/\">Review: Leica 135mm 3.4 Apo-Telyt-M<\/a><\/li>\n<\/ul>\n<h2>Support Us<\/h2>\n<p>Did you find this article useful or just liked reading it? Treat us to a coffee!<br \/>\n<a href=\"https:\/\/www.paypal.com\/donate\/?hosted_button_id=3K9EJRRQVXT4J\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40345 size-full\" src=\"https:\/\/phillipreeve.net\/blog\/wp-content\/uploads\/2023\/06\/donate2.png\" alt=\"\" width=\"103\" height=\"29\"><\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.paypal.com\/en_SE\/i\/scr\/pixel.gif\" alt=\"\" width=\"1\" height=\"1\" border=\"0\"> <span style=\"color: #999999;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.paypal.com\/en_SE\/i\/scr\/pixel.gif\" alt=\"\" width=\"1\" height=\"1\" border=\"0\"><em>via Paypal<\/em><\/span><\/p>\n<p>This site contains advertisement\/affiliate links. If you make a purchase using any of the links marked as advertisement\/affiliate links, I may receive a small commission at no additional cost to you. This helps support the creation of future content.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction To me the TTArtisan 90mm 1.25 was an unexpected lens, as Leica just recently put a 90mm 1.5 for 14 grand on the shelves, I did not expect anyone offering a faster 90mm M-mount lens. But here we are with a very chunky and massive 90mm 1.25 portrait lens. But is this the new &hellip; <a href=\"https:\/\/phillipreeve.net\/blog\/review-ttartisan-90mm-1-25\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Review: TTArtisan 90mm 1.25<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4708,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[57,18,260],"tags":[],"class_list":["post-28529","post","type-post","status-publish","format-standard","hentry","category-leica-m","category-review","category-ttartisan"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Review: TTArtisan 90mm 1.25 - phillipreeve.net<\/title>\n<meta name=\"description\" content=\"The TTArtisan 90mm 1.25 is the M-mount lens with the biggest entrance pupil so we expect great bokeh, but what about\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/phillipreeve.net\/blog\/review-ttartisan-90mm-1-25\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Review: TTArtisan 90mm 1.25 - 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