Digital BW, The Print

David,

one approach is to only use the black channel, leaving CMY channels
blank (white).
This means K will carry the full tonal range of the image.

As an enhancement you may try to duplicate the image as it appears in
the K channel to the other channels, then apply a curve that limits
the range to only the deepest shadows for CMY. This will produce a
richer "black" without mixing primaries across the grayscale.

In doing so, you have to make sure you do not exceed the maximum ink
(total of the highest percent in each plate) allowed by the press and
paper. That is never 400% (100% x 4 for each plate). It is around 240%
for newsprint and mid 300s for the higher end. You do have to find out
what applies in your case.


Antonis

  



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "d.burges"
<davidburges@...> wrote:
.....
> slightly differing hues, mainly yellow, some blue. Having read many
> posts it would seem it is very hard to obtain neutral tones due to the
> difficulty of mixing the CMY inks to produce neutral B+W, however I'm
> hoping there is an answer out there somewhere! David
> www.blinkweddings.co.uk
>