Category Archives: Leica M

Review: Kolari Ultra Thin Sensor Stack Modification

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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Review: Nikon Nikkor-H 50mm 2.0 RF

Introduction

nikon h nikkor rangefinder nikkor-h 50mm 2.0 rf sony a7 a7rii
Sony A7rII + Voigtlander VM-E close focus adapter + Nikon Nikkor-H 50mm 2.0 RF

This review covers the Nikkor-H 50mm 2.0 rangefinder lens, it may be a stop slower than its faster f/1.4 brother but shares the same great build quality. Might this be the better Nikkor 50mm rangefinder lens in the end? Read on to find out!

Sample Images

nikon h nikkor rangefinder nikkor-h 50mm 2.0 rf sony a7 a7rii bokeh oof out of focus
Sony A7rII | Nikon Nikkor-H 50mm 2.0 | f/2.0
nikon h nikkor rangefinder nikkor-h 50mm 2.0 rf sony a7 a7rii bokeh oof out of focus
Sony A7rII | Nikon Nikkor-H 50mm 2.0 | f/2.0
nikon h nikkor rangefinder nikkor-h 50mm 2.0 rf sony a7 a7rii bokeh oof out of focus
Sony A7rII | Nikon Nikkor-H 50mm 2.0 | f/4.0

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Review: Leica 135mm 4.0 Tele-Elmar

Introduction

leica 135mm 4.0 f/4.0 tele-elmar teleelmar elmar-m sony a7 a7rii a7r2 review build quality handling
Leica 135mm 4.0 Tele-Elmar via Voigtlander VM-E close focus adapter on Sony A7rII

Leica rangefinder lenses are very expensive? Most of them are, but the Leica 135mm 4.0 Tele-Elmar in its earlier versions can be found for less than 200$ used, so what is the catch with this lens? Read on to find out…

Sample Images

leica 135mm 4.0 f/4.0 tele-elmar teleelmar elmar-m sony a7 a7rii a7r2 review bokeh
Sony A7rII | Leica 135mm 4.0 Tele-Elmar | f/4.0
leica 135mm 4.0 f/4.0 tele-elmar teleelmar elmar-m sony a7 a7rii a7r2 review bokeh
Sony A7rII | Leica 135mm 4.0 Tele-Elmar | f/4.0
leica 135mm 4.0 f/4.0 tele-elmar teleelmar elmar-m sony a7 a7rii a7r2 review bokeh
Sony A7rII | Leica 135mm 4.0 Tele-Elmar | f/4.0

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Review: Nikon Nikkor-S 50mm 1.4

Introduction

nikon s nikkor rangefinder nikkor-s 50mm 1.4 rf sony a7 a7rii bokeh
Sony A7rII + Voigtlander VM-E close focus adapter + Nikon Nikkor-S 50mm 1.4 RF

This review covers the rather exotic Nikkor-S 50mm 1.4 rangefinder lens, which I got the chance to review thanks to a reader. It is small, it is lightweight, it has exceptional build quality, but what about the optics? Read on to find out!

Sample Images

nikon s nikkor rangefinder nikkor-s 50mm 1.4 rf sony a7 a7rii bokeh
Sony A7rII | Nikon Nikkor-S 50mm 1.4 | f/2.8
nikon s nikkor rangefinder nikkor-s 50mm 1.4 rf sony a7 a7rii bokeh
Sony A7rII | Nikon Nikkor-S 50mm 1.4 | f/1.4
nikon s nikkor rangefinder nikkor-s 50mm 1.4 rf sony a7 a7rii bokeh
Sony A7rII | Nikon Nikkor-S 50mm 1.4 | f/5.6

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