I vote for the 16-35mm f/4, and it's my "go to" for a short zoom. It has tremendous color rendition, and the low-end distortion is easily correctable in post processing. I'd have liked to buy the 17-35 f/2.8, but the 16-35 put a far smaller dent in my wallet. The one stop loss is easily handled with an ISO push.

› See More: Looking for a wide zoom, FX only