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#1
March 13th 07, 02:41 AM
posted to rec.photo.digital
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... thinking about making a CAMERA OBSCURA....
I'm considering building a camera obscura to project prints. The
prints would have a max. dimension of 20 inches. Have any of you guys built one of these? Any suggestions? The most critical component is probably the lens. It should probably have a focal length of 500-800 mm and a diameter of at least 3 inches. Where would I get a lens like this? Edmunds comes up blank. I would also need a first-surface mirror unless I have the print parallel to the projection screen. Suggestions appreciated. KS 
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