Walked with a 28mm Zeiss Biogon today on my lovely MM246. My favorite lens is a 50mm Planar, but I'm trying to get out of the comfort zone lately. Past few days I took both lenses with me but had an infrared filter both times. IR creates an interesting effect which sometimes gives a false sense you just shot a true keeper. 28mm with no filters compared to a 50mm with IR is like torture actually. After I got home and looked at the images I was pleasantly surprised. I have also decided not to edit any of the photographs and just keep what I got.