Those of you who have both, I am trying to make a final decision
and this is one of the things that I am very curious about.
I know that there could be an autofocus issue with an untaped
2x Tele and the 7D. I just wonder how bad it is in real life usage.
I would primarily be using it with the 500 F4.
Any advice or info would be helpful.
thanks
Garry


