RE: [Cameramakers] pinhole camera

[R. Gary Hall]

Pinhole diameter in inches = 0.0073 * SQR (focal length in inches). 
Or metric Pinhole diameter = 0.03679 * SQR (focal length in mm). 

Robert G. Hall
Robert Hall Photography
http://www.RobertHallPhotography.com
[EMAIL PROTECTED]
801-673-4510 

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