Ed,
Do you think it might also be that with a screened negative, you are printing
"black and white dots" rather than continuous tone? Thus each dot receives
the same amount of full exposure to harden it.
Increased "Tone" is achieved when the dots are placed closer together in the
screened negative.
Best Wishes,
Mark Nelson
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In a message dated 2/12/05 3:05:57 PM, glassact@compuserve.com writes:
> Katharine:
> I print my gum negatives through a halftone screen (paper, screen,
> negative, light in that order), and get much better separation of tone than
> when printed without the screen.
> I believe the reason is this: gum sticks to gum better than it sticks to
> sized paper. As a result, adjacent particles of gum tend to flake off
> together. The presence of discrete dots of gum therefore allows the stuff
> to adhere better to the paper.
> My 2 cents worth. Best- Ed Stander
>
Received on Sat Feb 12 16:09:27 2005
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