Jim Davis wrote:
> I thought the largest aperture idea would be better for less actual wear on
> the aperture, that is it wouldn't be opening and closing all the way each
> blank shot. I seriously doubt any light would enter with a lens cap on.
> Other than the wear on the aperture, I doubt any difference would matter in
> this case. However, setting on manual metering and manual focus is a really
> really good idea. If the mirror will lock up (maybe some bodies) that would
> be good to avoid wear on it as well.
Although there will be wear on the diaphragm blades it should not be
noticeable. The aperture diaphragm is designed and made to do this kind
of thing. It will only be part of a roll of film. It might be a
concern if the blades closed to f/22 100000 times.
The lens cap is designed to protect the lens. I think being light proof
is secondary in it's design.
Bob
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Everybody has a photographic memory. Some just don't have any film.
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