04-21-2021, 07:53 AM
Yes, I did. Not that the samples are great for understanding how this lens would perform in landscape/astro scenarios, but I see exactly what I'm saying. Far corners are not as impressive as center resolution, although the MTF10/MTF30 charts obfuscates the issue. You can also see astigmatism taking its toll on a7R IV. Not saying that the lens is not good, give me a perfect ultra-wide anyway. But I still believe theoretical MTF30 is not indicative for lens performance on high-resolution bodies, nor it takes into consideration production capabilities and sample variation.
You just can't have too many lenses...