From: "Patrice Chiniara" <[EMAIL PROTECTED]>

> Not at all... Focusing capabilities with the 1.4x TC are managed by the
> body, not the lens. Both EOS-3 and EOS-1v will have focusing capabilities
> with the 1.4x TC and the lens you mention. Any other body will not. Also,
> what the quote states is that the lens can fit on the teleconverter; it
> doesn't say anything about focusing capabilities. This is a direct cut &
> paste from a Canon brochure...

It DOES mention focusing capability when it states, "(Manual Focus only when
Extender EF 1.4x is used with EF 400mm f/5.6L or 500mm f/4.5L, or when
Extender EF 2x is used with EF 300mm f/4L/IS, 400mm f/5.6L, 500mm f/4.5L/IS
and 600mm f/4L/ IS). "
By stating these exceptions, the implication is that all other compatible
lenses will maintain autofocus capability.

Kim



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