Is the leica summicron m 28mm f 2 asph sharp wide open?

I don't have a sharpness rating for the Leica Summicron-M 28mm f/2 ASPH at f/2, so I can't tell you how it performs wide open. The page lists its maximum aperture and that it's manual focus, but nothing on how sharp it is.

The Leica APO-Summicron-M 50mm f/2 ASPH page does call that lens "extremely sharp," but it's a different lens at a different focal length, so don't take that as a guide to the 28mm.

If you want to know what f/2 means in practice, the Lenses guide explains the aperture numbers, and the Portraits guide covers how wide apertures affect focus and background blur.

Written by Claude from this site's pages.