One thing I've noticed is that on the 30D, when you take a shot in single shot mode is that you can release the shutter button halfway and can take another shot without focusing again.
The Rebel XT does not behave this way. I HAVE to refocus (by releasing the shutter button fully) before it allows me to take another shot.
I know I can get by this in burst shooting mode in XT, but I want to have the control.
So the question is: Is there a setting on the XT that will allow me to have the same behaviour as found on the 30D?
2nd question: Does the 20D behave the same way as the 30D?

