Hello group.
I'm new here and to pinhole as a process as well. (I
have just completed an 8-part course at the
Smithsonian given by the excellent Ed Kirkpatrick).
I've made 3 cameras of metal containers of various
sizes with good results. Presently I do have a
question which I hope the members of this group will
be able to address. Say I'm exposing a 7x10" paper
negative in a round can (150mm diameter, 170mm tall,
f=256 or so) with an aperture on the center of the
wall of the can. What happens if I were to make a new
aperture closer to the bottom of the can, for example
at about 20mm from bottom? The effect I'm trying to
gain is imaging small objects close-up at ground
level, and I'm thinking that one way of doing this is
with this low-level aperture with the camera on the
ground. Is this the case?
Many thanks for your help.
Best regards,
John Ptak, Washington DC
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Received on Tue Mar 27 02:13:20 2001
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