Explore Forums Discussions Camera Equipment SLR/DSLR Lenses Decisions, decisions… Re: Decisions, decisions…

Dave I
Post count: 124

I use the 17-40 extensively on the 5D and I find it a great combination. Unfortunetly I do not have experience with the 20mm. Only nit is the limited yuse of the CP at 17mm on the ff sensor. Causes vignetting. For the rest, I ner had any better.