From: Judy Seigel (jseigel@panix.com)
Date: 09/30/02-11:45:06 AM Z
On Sun, 29 Sep 2002 FotoDave@aol.com wrote:
> Clay,
>
> I don't do Platinum printing, so I don't know about the self-masking effect,
> but
>
>
> > If the process were truly self
> > masking, then the contrast of the resulting print should decrease with
> > increasing amounts of exposure. In fact, the slope of the curve stays
> > the same for a given sensitizer mix and only moves to the right when
> > you plot the typical H and D curve.
>
> I am not sure the above can tell whether self masking is in effect or not.
> Given any H&D curve, increasing or decreasing exposure (within reasonable
> limit) always shift the curve left or right regardless of self masking or
> not.
Dave -- or somebody -- why can't you compare develop-out platinum with
print-out platinum to see if there's "self masking"?
J.
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