I have a rebel xti and I am using a Canon 70 - 200mm F2.8 IS with Canon v II 2x conv. Will upgrading to the 7D help speed up the AF lag?
I am not looking for advice on alternative lenses as this lens was a wedding gift from my wife and I can hardly turn around now and say oh I need a new lens. I am brave but not that brave.
Thanks
Jamie


