Category Archives: Comparison

Comparison, Leica, Leica M, Mr. Ding Studio, MS-Optics, Voigtlander, Zhong Yi

Comparison: Super Fast 50mm M-mount Lenses

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Introduction

comparison super fast 50mm m-mount leica 24mp 42mp 61mp sharpness contrast bokeh vignetting noctilux 0.95 zhong yi speedmaster voigtländer vm nokton 1.0 1.2 MS-optics ISM mr. ding 1.1
Leica 50mm 0.95 Noctilux | Zhong Yi 50mm 0.95 M | Voigtländer VM 50mm 1.0 Nokton | MS-Optics 50mm 1.0 ISM | Mr. Ding 50mm 1.1 | Voigtländer VM 50mm 1.2 Nokton

The M-mount seems to be more popular than ever, thanks to plenty of manufacturers – old and new – from Europe, Japan and China designing and releasing countless of new lenses every year for this bayonet.
Super fast 50mm lenses are especially popular here, so many manufacturers designed one as their “flagship” lens.
Thanks to a reader and very cooperative companies I managed to get 6 of these lenses on my table at the same time, so let’s see what each of them is good at – to help you figure out which one might work best for your needs.
Last Update March 2025: Transmission section updated

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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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Introduction

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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Comparison, lenses, Review, Sony E-mount

Sony FE 1.8/85 vs. Sony FE 1.4/85 GM – The Big Shootout

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This is the long promised Sony FE 1.8/85 vs. Sony FE 1.4/85 GM shootout. This article should clarify what the  differences between these lenses are. Even the physical appearance sets both lenses apart. Does the FE 1.4/85 GM also punch in a higher class optically, or just in terms of size and weight? Let’s find it out.

This is a classic shootout article. For sample images and further informations, check out the dedicated lens reviews of the Sony FE 1.8/85 and the Sony FE 1.4/85 GM (coming soon).

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