Robert Gonzalez <[EMAIL PROTECTED]> wrote:

>You actually need a spring loaded contact to short out the recessed pin 
>on the body.  Then you still wouldn't get the correct exposure.  Non-A 
>lenses do not have a linear aperture engagement lever, so the body would 
>dial the wrong aperture when stopping down.

I think you *would* get the correct exposure, if you could install the
spring-loaded contact as described: If I understand the mechanism
correctly, the geometric, rather than linear, movement of the aperture
engagement lever, it would cause it to move *more* than is required to
stop down to the selected aperture, not less. 

-- 
Mark Roberts
Photography and writing
www.robertstech.com

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