Latest or all posts or last 15, 30, 90 or 180 days.
Welcome to diglloyd.com
In-depth review coverage is by subscription.
Also by Lloyd: MacPerformanceGuide.com and WindInMyFace.com
First-time visitor
Capacities up to 48TB and speeds up to 1527MB/s

Reviewed: Kolarivision-Modified Sony A7R II with Leica 50mm f/2 APO-Summicron-M ASPH

Get Sony A7R II mirrorless and Leica 50mm f/2 APO-Summicron-M ASPH B&H Photo.

Leica 50/2 APO-Summicron-M ASPH

Ray angle of rangefinder lenses interacting with the relatively thick sensor cover glass of the Sony mirrorless cameras introduces severe astigmatism in outer zones, along with lateral chromatic aberration.

Astigmatism can be understood as “two planes of focus generating a double image”. These are the sagittal and tangential foci, as used in MTF charts.

A specially modified Sony A7R II (KolariVision) and a stock unmodified A7R II were used to explore the performance of the Leica 50mm f/2 APO-Summicron-M ASPH. This is not a lens review, and is targeted strictly at showing how the modified camera performs.

This detailed analysis should answer the questions I’ve been receiving from those looking to shoot Leica M lenses on Sony mirrorless.

Sony A7R II Kolarivision Mod: Leica 50mm f/2 APO-Summicron-M ASPH

The Leica 50mm f/2 APO-Summicron-M ASPH was used for several reasons:

  • Many Sony shooters using M lenses deceive themselves: there is a myth making the rounds that somehow a 50mm rangefinder lens is not affected by ray angle; that this is false is demonstrated beyond a doubt.
  • The Leica 50/2 APO is Leica’s highest performing lens.
  • Wider-angle rangefinder lenses (35mm, 28mm, 24mm, 21mm 18mm) will be affected more than a 50mm, hence if a 50mm looks bad and it being a more favorable case, wider angle lenses will see even more benefit.
Durable and fast, up to 1800MB/s
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 8 hours unless noted. Certain deals may last longer.
$1199 SAVE $500 = 29.0% $19 FREE ITEMS Canon 18x50 IS Image Stabilized Binocular in All Other Categories
$1049 SAVE $450 = 30.0% $20 FREE ITEMS Canon EOS 77D DSLR with 18-135mm USM in Cameras: DSLR
$65 SAVE $25 = 27.0% $19 FREE ITEMS Celestron 15x70 SkyMaster Binocular in All Other Categories
$1697 SAVE $300 = 15.0% Nikon D750 DSLR in Cameras: DSLR
$2197 SAVE $900 = 29.0% Nikon D750 DSLR with 24-120mm in Cameras: DSLR
$3297 SAVE $800 = 19.0% Nikon D810 DSLR with 24-120mm in Cameras: DSLR
$300 SAVE $160 = 34.0% $9 FREE ITEMS Steiner 8x32 XC Binocular in All Other Categories
$1099 SAVE $200 = 15.0% ZEISS 25mm f/2 Batis in Lenses: Mirrorless
$1299 SAVE $200 = 13.0% ZEISS 21mm f/2.8 Loxia in Lenses: Mirrorless
$1999 SAVE $300 = 13.0% ZEISS 18mm f/2.8 Milvus ZF.2 in Lenses: DSLR

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2008-2017 diglloyd Inc, all rights reserved.