I think many of you who are struggling with the concept of the 16-35 vs the 17-40 are thinking of these lenses as solely F8 landscape lenses which they certainly aren't to many of us.
And to whoever it was, laughing about shooting a 16-35 @ 2.8 for landscapes: why? I shoot night landscapes at 2.8 all the time.
The 16-35 is one helluva night time lens and has a lot of advantages over the 17-40(which is a great lens in its own right). Maybe you don't see the advantages or can't understand the need, but many others do, so don't be so shortsighted.






