Quote Originally Posted by freedda
I'm very new to pinhole photography. I'm trying to mounted a pinhole aperture opening on a body cap for my SLR by drilling a hole with a sewing needle into a thin brass shim (as described in Jim Shull's intro pinhole book).
I've been able to get images with objects in focus up to about 20 feet away; beyond that they get blurry. I'm not sure if I need a larger pinhole, smaller pinhole, or a hole that is drilled "cleaner." Shull's book claims I can get a clean pinhole opening with this method, but I'm not sure its working. Any suggestions?
There is a web site that should be very helpful:

[ http://www.mrpinhole.com/holesize.php ]

Offhand, I'd guess that the pinhole diameter for a 35mm body cap would be **small**. LOTS of other good information - exposure, etc., as well.

BTW: Welcome to APUG!!