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Re: [OM] pinhole lenses

Subject: Re: [OM] pinhole lenses
From: Wayne Shumaker <shumaker@xxxxxxxxxxxxxxx>
Date: Thu, 15 Jul 1999 10:54:55 -0400
I would assume the thickness of the material used for the pinhole would
contribute to vignetting? If so, then thin material, or a wedged shape
hole would be best? We have a laser on a microscope in the lab that
could probably make a pinhole, may take a while. Where would I get some
really thin material?

Second question. I would assume that using an OM-2 or OM-4 would not be
good to use for 10+ minute exposures, as it would drain the camera
batteries, even on bulb? 

Wayne


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