Interesting, thanks for the images.lothman wrote:very wobbly setup so there might be improvement.
the FE90/2,8 (@2,8 Center 1:1, on A7 Riv) without and with 16 shot pixelshift on an USAF Target. So group7/3 is around 160 lp/mm if I read correct.
I‘m not sure I would call the 7/3 pattern resolved though. I‘ve been looking for an affordable USAF target for a while, where did you get yours from?
PS: On the lens rental blog they demand a MTF of at least 30% to call it meaningful resolution.
They tested the sony 90G at 63% for 50lp/mm at 0.5x macro. They didn‘t test it higher, but the best lenses tested around 58% for 120lp/mm, which gave 37% at 200lp/mm.
Short story, extrapolating from this, I‘d estimate the Sony 90G around 100-120lp/mm at 30% (and lower on real world sensors)
https://www.lensrentals.com/blog/2016/0 ... ro-lenses/
https://www.lensrentals.com/blog/2019/1 ... periments/