> "F. Craig Callahan" <[EMAIL PROTECTED]> wrote:
> ... The extension tube, in effect, "negates" anything mounted
> between it and the camera, in terms of what the body "sees."
> I thought this was interesting.
Hi Craig,
How many contacts are there on the front and back of the EF
extension tubes?
Would this explain your result?
Cheers
Julian Loke
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