On the XT - or any Canon DSLR - I have the C.Fn4 3 set. Do I push the * button one time to focus on a moving person (sports) or do I push the button and hold it in while I wait for the ideal moment to shoot.
If my question is not clear....when shooting football, do I push the * one time when the ball runner starts or do I continue pushing the * button until the play is dead.
I use the Al Servo setting.
Thanks in advance.


