Has anyone actually tried the Loxia 35 on a Kolari modded A7R II or A7R? I wonder if there are any added benefit with the thinner filter stack combined with the corrective optics inherent on the Loxia.
No, but I have tried the FE 35/2.8 ZA and Batis 25/2.0 on a Kolari modded V2 a7. In both cases, at infinity, when focusing dead center wide open, the corners needed focusing toward infinity just a bit. This would imply field curvature as if you would hold an open umbrella out in front of yourself. Keep in mind that the thicker coverglass of a stock a7 type camera, pushes the infinity of corners out away. So, how flat is the field on a stock camera?
I am trying to compare these 2 lenses on a stock a7R II, but the atmosphere here is not that clear to be able to see a difference wide open in corners/center, but at the Batis 25 optimum of f/5.6 corner sharpness equals the center. Diffraction is evident at f/8.
Oh, and one comment on the ZM35 Distagon. I went back to look at the comparison shots with the FE 35/2.8 ZA and at corner infinity the ZM is sharper at f/2.8 and f/1.4!
Aug 25, 2016 at 01:10 PM
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