Re: Maximizing printed gamut
Re: Maximizing printed gamut
- Subject: Re: Maximizing printed gamut
- From: Henrik Holmegaard <email@hidden>
- Date: Tue, 12 Mar 2002 18:10:51 +0100
"Walter Zacharias" <email@hidden> wrote:
1) How do you determine the maximum gamut of a press? Is it merely by BFI
(brute force and ignorance) or in other words trial and error? Or is
there a smarter
(cost effective) way of approaching this?
If you mean the maximum gamut a printing press is capable of
theoretically, then the press itself has no gamut, it is what the
press is made to run and how the press is made to run it that
produces a gamut. There are rules of thumb useful for locating the
materials which are likely to produce the largest gamut. This is the
point where the cookbook project most definately points you to the
FOGRA seminars -:).
I wouldn't think the rules of thumb for locating the printing
materials likely to maximize the gamut are quite the same for a press
as for an inkjet, because lithographic inks are fatty and sit on top
of the paper while inkjet inks are soluble and soak into the paper,
so the paper coating plays a larger role in the gamut of an inkjet as
it acts more on the light reflected back.
Other than rules of thumb the only way I know is to print, make
profiles, and look at the profiles in a 3D gamut comparison tool like
CHROMiX ColorThink or the ProfileEditor in ProfileMaker 4. ColorThink
version 2 creates QuickTime movies which makes it a whole lot easier
to explain to graphic designers and photographers what gamut mapping
and gamut clipping is about.
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