>>2696774The 28mm is actually pretty good. Don't let the speed and vintage fool you. Not only is it great on film but if you look up people who use it on digital it's surprising what it can produce. What I hate is the slow maximum aperture for focusing. It's hell but at least it's 28mm and slow so not much is out of focus.
It's not amazing or crazy sharp but for it's size and focal length I think it's very special and produces some decent results.