The shutter blades do double duty as the diaphragm too. The second
electromagnet controls how far the blades are allowed to open. If the
magnet releases the blades early it is a small f stop and a high shutter
speed (because the shutter is not opening all the way.)
John Hermanson
___________________________________
Camtech, Olympus Service since 1977.
21 South Ln. Huntington NY 11743-4714
631-424-2121 http://www.zuiko.com
Free Olympus Manuals: 1-800-221-3000
___________________________________
----- Original Message -----
From: Chip Stratton <cstrat@xxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, April 16, 2000 8:46 PM
Subject: [OM] XA2 aperture - fixed or variable
> I haven't been able to determine from the FAQs or any other source
how
> the aperture on the XA2 is controlled. Is it fixed at f/3.5, varied in
> 'program' fashion, or changed in some other way?
>
> Thanks,
> Chip Stratton
> cstrat@xxxxxxxxx
>
>
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