Category Archives: Review

Review: Laowa 15mm 2.0 Zero-D for Sony FE

Introduction

laowa 15mm 2.0 fe venus optics review
Sony A7rII with Laowa 15mm 2.0 Zero-D

The Laowa 15mm 2.0 Zero-D is a lens I have  been waiting for eagerly since I took a few snaps with the prototype at Photokina in 2016. It is one of the very few lenses making actual use of the narrow flange distance of mirrorless cameras.
But does it only look good on paper or can it keep up with my high expectations? Find out in this review! 
This is a Rolling-Review, bits and pieces will be added as we get to know the lens better.
Last Update: Review finalized (12/03/17)

Sample Images

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Sony A7rII | Laowa 15mm 2.0 Zero-D | f/8.0
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Sony A7s | Laowa 15mm 2.0 Zero-D | f/2.0 | higher resolution
laowa 15mm 2.0 fe venus optics review coma astro astrophotography milkyway milky way
Sony A7s | Laowa 15mm 2.0 Zero-D | f/2.0

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Review: Olympus 180mm 2.0 OM Zuiko Auto-T

Introduction

olympus om zuiko auto-t 180mm 2.0 flare review sony digital modern camera high res resolution
Sony A7rII with Novoflex OM adapter and Olympus OM Zuiko 180mm 2.0 Auto-T

I have already reviewed the Canon EF 200mm 1.8 L and the rare Voigtlander SL 180mm 4.0 APO-Lanthar, but the Olympus OM 180mm 2.0 Zuiko Auto-T is even rarer. I guess most of you didn’t know it even existed.
The Olympus an exotic relic from the past, one of Olympus’ masterpieces when it comes to 35mm lenses. So let us have a look at what I think is the first and only review of this lens on a (high res) digital full frame camera like the A7rII.

Sample Images

olympus om zuiko auto-t 180mm 2.0 flare review sony digital modern camera high res resolution
Sony A7rII | Olympus OM 180mm 2.0 Zuiko | f/2.0
olympus om zuiko auto-t 180mm 2.0 flare review sony digital modern camera high res resolution
Sony A7rII | Olympus OM 180mm 2.0 Zuiko | f/2.0
olympus om zuiko auto-t 180mm 2.0 flare review sony digital modern camera high res resolution
Sony A7rII | Olympus OM 180mm 2.0 Zuiko | f/2.0 | 16mm extension tube

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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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