I went to B&H tonight to look at the Kenko 2x AF Teleplus MC7 Teleconverter. It seemed ok; the only thing that was odd was that I couldn't manually focus the lens with the telecoverter attached even when I switched to manual focus on the body. The lens seemed to be still controlled by a motor even when we took the combination off the body. The salesman said this had something to do with "magnets", but I don't believe it. I didn't notice an AF/MF switch on the teleconverter. We tried a different teleconverter and the same thing happened.
So, are there AF TCs out there that allow you to manually focus, or am I out of luck there? Any ideas on what was happening in this case? Thanks, Amita

