Here’s a post about what Mike Collette of Betterlight calls “intentional misuse”. I had a Sony/Zeiss 24mm f/1.8 E mount lens sitting around on an NEX-7, where it had been comfortably idle since I got the RX-1 about a year ago. I wondered what would happen if I put it on the a7R, and told the… [Read More]
Archives for 2013
A break from the a7R
I’ll get right back to it, but something came up today that’s taking time away from testing the a7R. First, some background. I entered the Center for Photographic Art’s 2014 Juried Exhibition a few months ago. I’m not usually one for entering these kinds of contests, but I find it easy to make an exception… [Read More]
Leica 18 & 24 on a7R & M240
I promised some corner smear tests for the 18mm f/3.8 Leica Super-Elmar ASPH, and the 24mm f/3.8 Leica Elmar ASPH. I’ll show you the results here, both with the Sony a7R and the Leica M240, both res’d up to 12000 pixel across using bicubic smoother. I used Preserve Details in the last post, and I… [Read More]
Sony a7R corner smear with Zeiss 35mm
While waiting for the diffuser to arrive for testing the Adobe Flat Field workflow, I decided to take a peek at corner smearing. I took the lens that had given me a lot of trouble with corner color casts, the Zeiss Biogon 35mm f/2, mounted it on the a7R, went outside and made this picture,… [Read More]
Sony a7R — taking stock
Upon thinking about it, I find yesterday’s corner color cast results with the M-mount lenses on the a7R pretty depressing. We’ve already seen that lenses long enough to require a lens collar – or even, I suspect, mounting to the tripod via a plate on the adapter — have a problem on the a7R because… [Read More]
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