"Mark M" wrote:

I'm about to order a 2x Canon, but am curious as to your
decision/thinking.

FWIW, http://www.photo.net/learn/optics/tc2/index.html

My take on that page was that 2x converters pretty much aren't worth the
bother, but that 1.4x are.

Hey! I wonder if you can use a 300D-friendly teleconverter on a 10D as an
EF-S - EF converter, analagous to the FD-EF converterg. (Not that
there's any EF-S lens one would be interested in using a TC with...)

David J. Littleboy
Tokyo, Japan