IR fogging

["David Lee" <koganlee@xxxxxxxxxxxxx>]

I have been
> working with 4 X 5 sheet film pinhole cameras with panchromatic film, but
I
> hear large format IR film is a problem because of light leaks in the film
> holders. I have made pinhole cameras out of many things, including ammo
> boxes, plastic film cannisters, a mail box, a sneaker (not very
successful)
> and a cardboard refrigerator box.
> ******************************************************

I must warn you about using 4x5 infrared film with cameras made out of wood
or other materials. I made 2  4x5 cameras (for stereo) out of 3/16 inch
thick mahogany plywood. They worked great with pan film. When I used IR with
them the film was tremendously fogged. I then lined the insides with
adhesive backed aluminum tape and repainted it black and now they work fine.

David M. Lee
koganlee@xxxxxxxxxxxxx

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