[pure-silver] Re: IR pin hole photography

> >What have you used for your pinholes? Copper? Tin?
> ........ ?
> 
> Go to the grocery store and get an aluminum pie tin.
> They are cheap 
> and a good grade for pinholes. Use the sewing needle
> to make the hole 
> and then deburr it with fine sand paper.  

I did a pinhole project with my daughter a few years
ago where we built our own camera and shot a bunch of
pictures through it - our camera took 120 film, and
had masks to allow us to shoot various formats.  We
used a Kodak 35mm film cannister mounted on the front
as a 'lens mount' and then took several caps, and
mounted our pinholes on these.  What we found made the
best pinholes was to cut a piece of soda can, then put
a dimple in it with a pin, and sand with fine sand
paper until a hole emerged.  We made about a half
dozen holes like this and then picked a couple that
looked good to actually shoot pictures with.


                
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