Category Archives: Comparison

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

Continue reading Review: Kolari Ultra Thin Sensor Stack Modification

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

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).

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

Sony A6500 vs. Sony A7II comparison – which one is the smarter choice?

With the Sony A6500, Sony has entered the terrain of semi-professional crop cameras. The camera is significantly higher priced than other Sony APS-C cameras, and is directly competing with other smaller format flagship cameras like Fuji X-T2, Nikon D500, Olympus OMD-EM1 Mk2 or the Canon Eos 7D Mk2.

Furthermore, the Sony A6500 is now similarly (or even higher) priced than the Sony A7II. This leaves open the question for many people as to whether they should really spend that much on an APS-C camera, or if they should get a full frame body instead. The comparison is obvious, and legitimate, because the cameras share a few key specifications – like sensor resolution, mount, and sensor stabilization. Let’s check what sets these cameras apart from each other.

Sony A7II | Sony FE 1.8/55 ZA
Sony A6500 | Sony 1.8/24
Sony A6500 | Sony 1.8/55 ZA

Continue reading Sony A6500 vs. Sony A7II comparison – which one is the smarter choice?

35mm Comparison: Voigtlander VM 1.7, Zeiss Loxia 2.0 and ZM 1.4, Leica FLE 1.4

Introduction

Leica Summilux-M 35mm 1.4 Asph FLE | Zeiss Distagon ZM 35mm 1.4 T* | Voigtlander Ultron 35mm 1.7 Asph | Zeiss Loxia 35mm 2.0
Leica Summilux-M 35mm 1.4 Asph FLE | Zeiss Distagon ZM 35mm 1.4 T* | Voigtlander Ultron 35mm 1.7 Asph | Zeiss Loxia 35mm 2.0

We managed to gather the three most recent fast rangefinder 35mm wide angle lenses from Leica, Zeiss and Voigtlander, threw in the Zeiss Loxia and put them up against each other on the 42mp A7rII.  So in case you are looking for a small modern high quality 35mm manual focus lens: read on!

Continue reading 35mm Comparison: Voigtlander VM 1.7, Zeiss Loxia 2.0 and ZM 1.4, Leica FLE 1.4

Mini tripods for mirrorless cameras

Introduction

tripods mirrorless cameras velbon gitzo manfrotto sirui rrs kirk markins a7rii a7s

As a follow up to my Tripods for Mirrorless Cameras article I will now also take a look at some of the Mini tripods available (often referred to as table top tripods). Even the smallest tripod is better than no tripod at all, so let’s have a look at some ridiculously small ones you won’t find an excuse not to carry around all the time 🙂

Continue reading Mini tripods for mirrorless cameras