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Re: Digital Negatives with enough Tones for Pt/Pd

Jeffrey,

Any particular reason why you want to expose all three of
your negatives at the same time?  If you have shadow, mid
and high tones separated in different scans (assuming a full
256 tones in each file and in each corresponding negative),
and
if you print each negative individually in sequential
exposures you should still have a result in which the total
number of (theoretical) tones in the print is the sum of
the negatives.  Plus, you have the option of increasing or
decreasing exposure through any one of the individual
negatives to tweak your control even further.  The negatives
do not need to each have enough density to maintain paper
white because no individual negative will be printed with a
full length exposure.

At first glance it would seem that the image degradation by
the composite thickness of your negative sandwich would
offset any potential gains in other areas (but maybe not).

Garet Denise