Both the 2007 Leica 50mm f/1.4 Summilux ASPH and the 1952 Nikon 50mm f/2 Nikkor-H, when used on the Sony alpha & Mark II (a7II), suffer from corner smear. Since corner smear not only reduces resolution, but imparts its own — IMHO, really ugly — look to the image, I’m foregoing test charts and MTF calculations… [Read More]