Re: PT/PD Exposure Scale

Date: 03/01/05-11:14:33 PM Z
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Hi Eric,
I just found it interesting—it may not be that interesting to other folks.
I would guess that the long exposure scale comes from the extreme humidity
used. This is the longest exposure scale I have plotted thus far for a PT/PD
curve and I found the shape of the curve also to be interesting.

The exposure source was a NUARC.

Best Wishes,
Mark Nelson
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In a message dated 3/1/05 11:03:17 PM, writes:

> Mark, This was made with a  digital neg? and the news here is? An unexpected
> abilitiy to show a density range of from where to where? Light source?
> Eric Neilsen
Received on Tue Mar 1 23:14:56 2005

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