Category Archives: Comparison

Comparison, Guides, lenses

Guide to Ultra Wideangle lenses for the Sony A7 Series

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Leica M10 | Laowa 9mm 5.6 | f/8.0

We summarize our experience with all the native E-mount and a few manual legacy lenses in the 9-18mm bracket to give you a compact and independent resource for choosing the right super- to ultra-wide-angle lens for your Sony A7 cameras. In this summary we also included some adapted lenses we think are worth mentioning.

We also have a general guide to FE lenses, guide to 20-28mm lenses as well as a guide to 35mm lenses, 50mm lenses and 85-135mm portrait lenses.

We have no association with any lens manufacturer apart from occasionally loaning a lens for a review. Before any short introduction we tell you how long we have used a lens and if we have borrowed it from a manufacturer. But in most cases we have bought the lenses new from retail stores or on the used market. 

Many of these lenses are manual focus only (MF) whereas some of them feature auto focus (AF). There is also a noticeable amount of lenses listed here that do not feature electronic contacts to communicate with the camera (no Exif).

If we have left any question unanswered please leave a comment or contact us on social media and we will do our best to answer it.

Last update: January 2023

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Comparison, lenses, Minolta SR mount, Sony E-mount

Testing two 45-year-old wideangles on 61 Megapixels (guest post)

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Since the introduction of mirrorless camera with shorter flange focal distances the usage of vintage lenses grew rapidly. With full frame bodies like the Sony A7R II or newer with 42 or 61 megapixel, it is interesting to know whether those lenses are still usable on those cameras and can be a cheap alternative for the manually focussing photographers out there.

Continue reading Testing two 45-year-old wideangles on 61 Megapixels (guest post) →

Comparison, lenses, Review, Sigma, Sony E-mount

Comparison: Sigma Art 35mm 1.2, 35mm 1.4 and 40mm 1.4

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Introduction

comparison sigma art 35mm 1.2 1.4 40mm hsm dg dn review sharpness contrast bokeh infinity portrait coma
Sigma 35mm 1.2 Art DG DN – Sigma 35mm 1.4 Art DG – Sigma 40mm 1.4 DG

Sigma now offers the DSLR designs 35mm 1.4 Art and 40mm 1.4 Art and the newly designed 35mm 1.2 Art for Sony E-mount cameras. Let us find out what the differences between those 3 are and if there is a reason to get one of the bigger, heavier and more expensive lenses.

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Canon FD-Mount, Comparison, lenses, Pentax K-mount, Review

135mm legacy Shoot out: SMC Pentax-M f/3.5 vs Canon nFD f/3.5 vs. Panagor f/2.8

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Shoot out: SMC Pentax-M 135mm f/3.5 vs. Canon nFD 135mm f/3.5 vs. Panagor PMC auto tele 135mm f/2.8

In my search for a compact but good budget telelens I came across the SMC Pentax-M 135mm f3.5 and the Canon newFD 135mm f/3.5. Later, I also found a Panagor PMC auto tele 135mm f/2.8 in Canon FD mount. These lenses are cheap, light, and small, but how do they perform?

Disclaimer: I only tested one sample of the Canon and Panagor, and two samples of the Pentax. Since these lenses are old there might be more sample variation than usual, other samples might perform slightly better or worse. Both Pentax samples displayed similar performance. 

Left to right: Panagor, Canon, Pentax

Specifications

Specifications Canon newFD 135mm f/3.5 SMC Pentax-M 135mm f/3.5 Panagor PMC auto tele 135mm f/2.8 (FD)
Diameter 63 mm 63 mm 61 mm
Length 85 mm 66 mm 88 mm
Filter diameter 52 mm 49 mm 55 mm
Weight (ex. Adapter) 325 g 270 g 411 g
Aperture f/3.5-32 f/3.5-32 f/2.8-22
Minimal focus distance 1.3 m 1.5 m 1.5 m
Elements/groups 4/4 5/5 4/4*
Aperture blades 6 8 6

(*Based on the optical design of this lens for other mounts)
Continue reading 135mm legacy Shoot out: SMC Pentax-M f/3.5 vs Canon nFD f/3.5 vs. Panagor f/2.8 →

camera, Comparison, Leica M, lenses, Review, Sony Alpha, Sony Alpha 7

Review: Kolari Ultra Thin Sensor Stack Modification

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Cover glass from the Sony A7, A7II, Kolari version 2 mod, and Kolari Ultra-Thin mod (from Kolari’s website )

Most rangefinder lenses used on a Sony a7 series camera show some serious issues because of the rather thick filter stack in front of the sensor. There are two ways to deal with this. We have previously discussed the use of front filters to counter the induced field curvature. In this article Sebboh reviews another solution.

This is an extended use review of the Kolari Ultra Thin (UT, also sometimes referred to as version 4) sensor stack modification on a Sony A7. This modification removes the AA filter and IR cut filter from a stock Sony camera and replaces it with an ultra thin 0.2mm thick IR cut filter in order to attempt to provide similar levels of performance to the Leica M9 in dealing with the steep ray angles often produced by rangefinder lenses designed for film. I have shot a UT modified Sony A7 for 6 months now and can confirm that it dramatically improves performance with certain lenses (big thanks to Nehemiah for letting me use his lenses and cameras for the comparisons shown here). I will try to outline what kind of improvements can be expected here and what drawbacks there are to getting the conversion done.

Sony A7 Kolari UT | Carl Zeiss Contax G 21mm f/2.8 Biogon | f/11

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