fasted18 said:
ok i like to shoot mostly sports and parties (indoors). I shoot on a t2i.... i find myself in a lot of low light situations. i currently own the Canon 1.8 50mm. im looking at the Tokina 11-16mm and the Canon 10-22. im really fixed to the price range of under $700. i hear a ton of good things bout the Tokina and the f2.8 really has me leaning towards it. but i just know the Canon will have sharper images.. so im stuck..someone help!
I would suggest that for low light and moving subjects without flash, you will want a lens with as wide of a aperture as possible. This puts you in the realm of the Sigma 30mm f/1.4. I'm not aware of a low cost lens this fast at wide apertures, and f/2.8 is not fast enough unless you like lots of noise and grain in your photos.
Personally, I avoid Sigma, but it does have that lens at the right price.
None of the lenses you mention are ones I think of as being for sports. Indoor sports? Outdoor Spoorts? Daytime or evening? The answer could vary from the 85mm f/1.8 to a longer lens. The most difficult will be the low light situation, there might be nothing in your price range to handle that for sports, so you might have to compromise.