>>3612208You've no centre there. Still, there's quite noticeable sharpness drop off seen at the bottom corners.
Looks the same on all f2 shots to me. Soft corners, and a bit of vignetting. Looks equal stopped down to f4, could be that touted improvements are there. Still, not very sharp no matter where it is. Compared to normal prime, off-course, I don't doubt that it looks stellar next to the likes of rx1, and it's subpar lens.
