Re: Kodak Approval and ICC
Re: Kodak Approval and ICC
- Subject: Re: Kodak Approval and ICC
- From: Chris Murphy <email@hidden>
- Date: Tue, 7 Nov 2000 18:13:26 -0700
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I finally decided to ask him, "if we have the densities correct and the
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machine set-up where it should be, why couldn't we profile the Approval
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and be done?" (we have the equipment already to do this). His reply was
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that it needs the dot gain applied before you can profile it and
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recommended to stay away from ICC profiling with the Approval.
The idea behind Kodak Approval is to get a digital dot proof (dot for
dot). If you're trying to get a 50% dot on press to look the same as on
the proof, then you pretty much have to do it the way he's doing it. If
you don't care about dot for dot proofs, then you can make an ICC profile.
The problem with profiling a Kodak Approval is that for press 50%c + 50%y
(for example), you will end up with something like 48%c, 3%m, 53%y, and
1%k. The fact that c and y are off a few percent isn't a big deal. But
you *do* get magenta and black contamination. It's just a function of ICC
based color management trying to get a colorimetric "match".
Colorimetrically the magenta and black isn't a bad thing; but from a dot
for dot PROOF standpoint, people don't like seeing magenta and black dots
on their proof when they aren't going to be there on press.
So it's not the fault of Kodak, or the Approval, or ICC based color
management. It's just where things are right now. Approval is not limited
to proofing SWOP output, but that was what it's designed for. So you
should be looking at the ink set and paper type, and printing process
being used and ensuring it's an appropriate fit with Approval.
Chris Murphy