I'm trying to solve a delima I'm having here. My budget for a 70-200 lens is 750ish - so the canon 70-200 2.8 is waaay out. I have read good reviews on the Sigma but the canon is, well, canon and an L.
I'm hoping to start second shooting with some local wedding pros in the future so it would be for that application.
So the question is - Do I get the Sigma for the 2.8? Or do I go with the Canon, even though it's only a f/4, because it's a L and (presumably) better IQ?
Any thought's would be appreciated.

.
