I want to take better quality pictures with a better zoom and where I won’t have so many blurry pictures. What lens do you suggest and what extra flash accessory can I use on the Rebel XT? Thanks.
A flash will be all but useless except for post-game pictures of the players.
For what you want you’ll need the fastest zoom you can buy. A high ISO will also be needed if you want to stop action. Have your camera in Shutter Preferred Mode.
Indoor sports that are floodlit :
ISO 800
f2.8 @ 1/125
ISO 1600
f2.8 @ 1/250
ISO 3200
f2.8 @ 1/500
Yes, your images at 1600 and 3200 will be noisy but you can clean them up with a program like Noise Ninja.
Canon offers two - the EF 70-200mm f2.8L IS USM or the EF 70-200 f2.8L USM. Obviously, the one with IS (Image Stabilization) will help with possible camera movement. IS will not help with subject movement that requires a fast shutter speed.
Tamron also offers the SP AF70-200mm f2.8 Di LD (IF). You can read reviews of the Canon and Tamron lenses and decide which to buy.