"Bob Pendleton" <[EMAIL PROTECTED]> wrote/replied to:

>>AF is much better with the 3 & 1V.
>
>Begging the question, what is 'big glass', this business of  'no AF' in
>Ray's original reply
>
>"You lose AF with Canon 2x extender.  EOS 3 & 1V allow AF at f/8 which =
>includes the Canon 2x."
>
>puzzles me - it seems that this is not always the case. As Jim knows, I've
>recently been playing with a 300L IS f/4 on my EOS50E. On occasion - well
>most, so far! - I've also added the Kenko/Teleplus 7 element 2x tele
>converter. It is a pleasant surprise to find that in reasonable light this
>combination can autofocus. Am I missing something or is that 'reasonable
>light' the key to it all?

With the Canon 2X you lose autofocus. With the Kenko you don't. That's
because of the aperture being reported properly :-)

"take every day as a gift,
never get angry at the idiotic mass of humanity,
delight in the craftsmanship of BMW and nature"
Jim Davis, 2002

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