At 4:08 PM -0600 10/28/99, Garth Wood wrote:
>If you don't want to make one of your own, the pinhole cover for an OM
>camera can be had at Calumet Photo for $29.95 U.S. (manufactured by
>Finney). There are also basic instructions for calculating the diameter
>of the pinhole in the Ilford Manual of Photography (out of print,
>published by Focal Press). If anyone's interested, I can post the few
>details in there.
>
Here's the formula: D=0.047*SQRT(f), D=pinhole diameter, and f=focal
length, both in millimeters. This is from an article by Dr. Matt Young:
http://www.pinhole.com/resources/articles/Young/index.html
It's a very interesting article if you like science.
Be seeing you.
Dirk Wright
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