Re: Pinholes

[P3D Eric Goldstein <egoldste@xxxxxx>]

> John Fairstein asked:
> 
> >Do pinholes have different focal lengths?

and John Slivon answered:

> Sure do, however, the focal length of each "pinhole" camera has an optimal
> pinhole diameter.

For anyone even remotely interested in pinhole photography, stereo or 
otherwise, I'd highly recommend the following url:

http://www-swiss.ai.mit.edu/photo/pinhole/pinhole.htm

It is a fascinating and very well written piece, with some other excellent 
links on the subject. The page is written by Jon Grepstad for Philip 
Greenspun's "photo.net," yet another excellent source for all manner of 
information photographic.

Eric G.


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