thats what i heard fr a pro too, go for 17-55mm f2.8 rather than a 24-70 f2.8 L haha.
1 more things that puzzles me (sorry taking the chance hehe), does "filter thread size" play a role in the "wideness" of photo taken? we have a 52mm on kit, some is 58mm, some is 67mm, some is 77mm? bigger...