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Re: [APML] Scanning slides (Was IC 410 uploaded and IC 405 adjusted)
Stuart and Duncan,
--- Stuart Heggie <stuart.j.heggie@sympatico.ca> wrote:
> So, per you description below, the name for this is Reciprocity Law
> Failure (or Reciprocity Failure
> for short). If the system is slow enough, the crystals being formed
> will keep decaying because of
> insufficient photons in a short enough time to stabilize the
> crystallization.
That explains why faint areas are difficult for me to catch, but not
why Supra will continue to show more and more stars even on exposures
longer than 300 minutes.
> Alan, I think your idea of a processing error might be right or maybe
> others are push processing their film and you are not?
Most likely it would be an improper scan and I plan to post a question
regarding that ASAP. I have always had my film developed by the
recommeneded process, C-41 for Supra, E-6 (?) for the one roll of E200
I've done. John's comment indicated that push processing wouldn't be
needed unless it would help get the hump of the histogram fully into
the box. Is pushing a good idea?
Alan
=====
SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102
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