--- Nick Dvoracek <dvoracek@vaxa.cis.uwosh.edu> wrote:
> About 10 years ago I got the same idea about cheap electrical tape.
> Tried it out and it seemed to work great, so I ordered about 100
> rolls for a project to provide pinhole cameras to schools. Most of
> it hardly stuck at all and the rest came loose pretty quick. Maybe
> it's OK for making metal pintoids light tight, but I wouldn't
> recommend it for assembling foamcore or matboard cameras. A physicist
> I know also told me it's not opaque in the infrared if you're into
> that!
This is correct. I use electrical tape to amke my foamcore cameras, but then,
they've always been designed with the expectation that I'll eventually sit on
them and destroy them anyway.
It is true that electrical tape is not infrared opaque, but then I rather doubt
that foamcore or matboard is either, so that's a moot point. OTOH, although
different types of wood have different degrees of infrared opacity, I have used
pine (which is probably about the least opaque wood) with infrared with
success, so thickness probably enters into the scene.
Cheers -
george
=====
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Received on Wed Sep 19 15:45:36 2001
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