Sony Kolarivision A7R.MOD: Summary of Performance (Guide to Mirrorless)
See the prior posts: Sony A7R: Sensor Glass Thickness, Ray Angle and Image Degradation: Kolarivision Modification and also Modified Sony A7R Sensor Glass: Impact on Rangefinder Lens Performance.
I’ve summarized what kind of behavior can be expected with the KolariVision A7R.MOD (replaced and thinner sensor cover glass):
Modifying the Sony A7R for Superior Rangefinder Lens Performance
Includes example large crop aperture series for the Zeiss ZM 21mm f/4.5 C-Biogon and the Leica 50mm f/2 APO-Summicron-M ASPH.