From: Les Newcomer (lnphoto@ismi.net)
Date: 08/04/00-02:31:37 PM Z
F143 or f128 1/2 if your tolerances are anything but extrememely tight.
4" / .028"
lva wrote:
> I've got a pinhole camera here with an 0.028" pinhole and 4 inch focal
> length. Can anyone help me calculate the f/stop?
>
> Greetings
>
> Michael
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