Re: math

Since you brought the subject of exact pinhole size and best techniques for
darkening up, I just did an experiment which succeeded beyond my
expectations. I darkened the backside of a soda cracker with peanut butter
except for the small hole in the center of the cracker, used the peanut
butter to attach the cracker over a small hole in the side of a cardboard
box and used 8x10 photographic paper as a negative. Did one exposure which
was much too light, repeated with a longer exposure and got a good, sharp
image. Nothing quantified except the length of exposure, and that only by
comparison with previous results. I'm building another cardboard box camera
which will allow for interchangeable cracker-pinholes, and them I'm going to
photograph food with food. Results to follow.
----- Original Message -----
From: <sky666@earthlink.net>
To: <pinhole-discussion@pinhole.com>
Sent: Friday, November 24, 2000 12:03 AM
Subject: [pinhole-discussion] math

> pinholes are not alike just like snow flakes so easy to mess up any bodys
assumptions nothing is exact the hole done it p.s. the way to darkin the
hole is to take a small piece of rubber lite it with a match let the soot do
the job has no density acts as a perfect assorber of stray light intering
the hole no reflections other chemical, paint or whatever has density and
will act as a reflector of light several applications of soot willcreate a
passage for light with much better results handle with care rubs off
>
>
>
>
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Received on Fri Nov 24 04:43:47 2000