without the little lever, it won't stop down untill
the shot is taken, IE won't know it's stopped down to
know what to meter.

 --- Steve Desjardins <[EMAIL PROTECTED]> wrote: >
Stupid question.  I've read that an M lens on the
> *ist will only meter
> wide open. If the camera can't talk to the lens, how
> does it know what
> wide open is?  and if its reading the light coming
> through the lens, why
> won't stopping down affect metering?  Probably an
> obvious answer, but I
> can't see it.
> 
> 
> Steven Desjardins
> Department of Chemistry
> Washington and Lee University
> Lexington, VA 24450
> (540) 458-8873
> FAX: (540) 458-8878
> [EMAIL PROTECTED]
>  

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