--- Tom Purdum javaboy...@yahoo.com wrote:
Ok,
I have been doing a bit of reading but I am a bit
confused. Being that this is my first pinhole camera
I am a newbie. I figured out my pinhole diameter to
be 0.22 for a 1.5in focal length and an F-stop of 167.
Is this right? I just don't
Is your pinhole diameter .22 mm? .22 mm / 38 mm = 173, 38 mm is about
1.5 in. If its .22 inches then your F stop would be 6.8. I hope you
measured your pinhole diameter in the metric system.
This is the kind of stuff that made the Mars Climate Orbiter burn in Mars
atmosphere, some time
Is your pinhole diameter .22 mm? .22 mm / 38 mm = 173, 38 mm is about
1.5 in. If its .22 inches then your F stop would be 6.8. I hope you
measured your pinhole diameter in the metric system.
--
Chris Peregoy | http://www.gl.umbc.edu/~peregoy | http://imda.umbc.edu/
