Alex writes:
> I thought the link was electronic, not mechanic.
The electronic contact in an "A" lens only communicates the minimum and
maximum apertures. This is so the body knows what the limits are in
program mode (so it won't try to set an f/5.6 lens to f/2.8, or try to set f/32
when the lens only goes to f/22).
The actual aperture you've selected is communicated using the mechanical
coupling as the other guys indicated.
Cheers,
- Dave
David A. Mann, B.E.
email [EMAIL PROTECTED] * http://www.digistar.com/~dmann/
"Why is it that if an adult behaves like a child they lock him up,
while children are allowed to run free on the streets?" -- Garfield
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