>From: "Michael Georgoff (SAL-US)" <Michael_Georgoff@trendmicro.com>
>Guillermo,
>
>You maniac! According to my calculations, a 15mm fl pinhole would need to
>be = .0065 inches. Can you actually produce holes that small by hand? I
>have trouble breaking the 10 thousanths barrier
Michael,
I actually made a 0.0045" that at the end enlarged it to 0.0055" to
use it in a 14mm focal length modified disposable 35mm camera (had trouble
with vignetting when recessing the pinhole to be just 10mm from the film).
It takes lots and lots of patience/time, but doable. And yes all my
pinholes are made by hand. If they are bigger than 0.018" I start them by
drilling a hole smaller than the intended diameter and then continue by hand
with a needle.
Guillermo
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Received on Mon Apr 23 14:55:18 2001
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