From: Sarah Van Keuren (svk@steuber.com)
Date: 08/05/00-07:31:45 PM Z
The brief discussion about the sun being solarized in an Ansel Adams
negative reminds me of various pinhole negatives by students and myself,
both film and paper, in which the sun is solarized. This leads me to a
question I've had for a long time. Does the characteristic curve repeat
itself with large doses of light? Could the sun change back and forth from
being solarized to being opaque on the negative to being solarized again? I
have noticed pieces of fogged film lying around at school that are different
shades of pink to tan depending on which parts were sticking out from under
others and thus exposed to even more light. This film does not always give a
uniform black when developed for chiché-verre purposes. I imagine the
characteristic curve of this film as a wave form repeating with diminishing
amplitude and decreasing sensitivity but nevertheless repeating. Working
with duplicating film has caused me to think about the far side of the curve
since the film is preexposed to the shoulder and the image is formed going
downhill. I hope someone understands my question and can answer it.
Thanks,
Sarah
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