I am in the market for a fast ( f2.8 ) relatively wide zoom to shoot halftime activities at night HS football games, and to shoot indoor basketball this Fall. I have looked at the Sigma 24-70 EX and the Canon L, but I have read a lot of great comments about the Tamron 28-75. Problem is, everybody just calls it the Tamron 28-75 and there are two Tamron 28-75 f2.8's out ther, the Tamron SP AF28-75MM F/2.8 XR Di LD Aspherical (IF) and the Tamron AF 28-75mm f2.8 XR Di Zoom. They are both about the same price.
So, which is better?
Thanks,
Dennis

