Upload & Sell: Off
though it seems there's only a 15mm difference, these two lenses are very different beasts.. the 35L is considerably wider (in a closed area/room), more reliable with AF & more versatile (use it wide open all the way up to f/8 without a second thought) than the 50L..
that said, the 50L, when used properly, can yield sublime results unmatched by the 35L..
with the 35L at weddings, i typically shoot it either at f/1.4, f/2 or f/2.8-f/4 (for larger groupshots)
with the 50L at weddings, i typically only shoot it between f/1.6 to f/2.2 depending on if i'm isolating one subject or taking a photo of 2-3 people at once.. quite a few photographers will rip on the 50L for its less consistent AF, but i'd prefer to say the 50L has personality =)