In a message dated 2/5/06 3:09:58 am, dstevenbryant@mindspring.com writes:
> According to Sullivan and Weese in their book, 'The New Platinum Print',
> brush development provides a method for getting a longer scale print when
> dealing with contrasty negatives. That's why I tried it. I can't say that I
> met my goal.
>
What is the definition of 'contrasty' in this context ?
A negative of up to a density of 2.2 can be used to make a platinum print
with dish development in potassium oxalate. More density than that will lead
to blocking out at one end of the scale and reversal at the other. If one has
a pressing need to use a negative with a greater density then one could make a
carbon print from it. But if one is insisting on a platinum print, one should
make an internegative.
My own experiments with brush development involved the control that glycerine
development gives. My own conclusion was that it was not worth the effort.
Terry
Received on 05/02/06-01:35:22 AM Z
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