I currently have a Rebel T1i and already have the 17-40mm f4, 50mm 1.8 and the 70-200 f4. Thinking of buying the 24-105mm f4 plus a couple of primes (85mm and 135mm maybe). I mostly shoot outdoors which is why I started with the f4's. When I am indoors I find I can move around and use the 50mm. I am starting to rethink this now that my subject (daughter) is doing a lot of indoor stuff like sports and theater. I am starting to think if I should sell the f4's and buy the 3 f2.8 zooms covering 16-200mm and not bother with the primes (budget reasons). Is 2.8 going to be fast enough for that kind of indoor shooting?


Clark