From: Henry Rattle (henry.rattle@ntlworld.com)
Date: 04/23/03-06:34:37 AM Z
I've just been spending more time than I should trying to print a monochrome
gum from a digital inkjet negative, and trying to get the negative contrast
range right. My early (some years ago) monochrome gums were all printed from
10 x 8 negatives on Ilford Ortho Plus film, and gave me no problems. Since
then I have spent several years printing four-colour gum from inkjet
negatives, where the separated CMYK negatives print just fine with no
adjustment of contrast, or use of transfer functions or curves.
So I thought the description of the transfer function in P-F 8 would be a
good starting point for a new look at monochrome. I like the idea of using a
transfer function to produce a suitable negative, rather than curves which
modify the image on the screen. However that still leaves the issue of
producing a neg with a suitable density range.
How do people modify the negative on screen to produce a suitable range,
before printing via the transfer function? Once the original image looks
right on the screen, do most people just use the "levels" dialogue to cut
down the output range, say from 50-200 instead of 0-255? Or do you do it by
eye, or some other way?
I'd value your experience...
Best wishes
Henry
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