"Gautam Majumdar" wrote in message news
On Thu, 03 May 2007 23:13:45 +0100, Charles wrote:
Hi all:
Thinking about this combo:
20D, EF 100-400 and EF 1.4XII teleconverter.
You will lose AF with any 10 pin TC. I use a Kenco non-Pro 1.4x TC (7-pin)
which allows AF. Quality is not bad at all. It is half the price of Canon.
--
gautam
AF will be retained with the Kenk Pro TCs too. But with an effective f8 @ 400mm, expect slow autofocussing and hunting in any
conditions other than bright light.
Cheers
--
cmyk