Re: How do I create a CMYK profile for use in QuarkXPress?
Re: How do I create a CMYK profile for use in QuarkXPress?
- Subject: Re: How do I create a CMYK profile for use in QuarkXPress?
- From: email@hidden
- Date: Fri, 22 Jun 2001 17:02:12 EDT
In a message dated 6/21/01 6:13:12 PM, email@hidden writes:
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My personal needs are for profiling my offset print supplier, and for
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emulating what they achieve on press with an inhouse proofer. Currently
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I have obtained extremely satisfactory results converting to cmyk from
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PS4 with an ink set created as above, and with adjusting the inks setup
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and the sep set up to my satisfaction.
Well, the CMYK profiles you could build through Photopshop are basd on that
same ink setup engine, so if PS4 ink setups suit your needs then PS5 or 6
profiles built from them should as well...
In house proofing has been done
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on a Tek480X dyesub with fair correspondence to Kokak Approvals.
Profiling inkjets via the Photoshop method is not bad, but Dyesubs are very
non-liniar devices, and may not fair as well as inkjets for this (or even for
other) methods of profile building...
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However, we are now using direct to plate technology with Stochastic
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screening (with 10 micron dots). We push the ink densities extremely
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high on press, and the resultant gamut is beyond the Kodak Approval.
Two issues here: the Photoshop profiling method ois based on press-like
bahavior, and intended basicly for fixed dot screening, but adapts well to
stochastic inkjets with much higher dot gain, so should be capable of
emulating presses with it as well... Second issue is gamut limits: if your
proofing device can't match the gamut of your printign method, then certain
colors simply can't be emulated in the proof.
I
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believe it is also beyond the Tek480X.
I suspect you may be right, but until you build quality profiles for both the
press condition and the proofer, and view them in ColorThink or another 3d
profile mapping tool, you will have a hard time knowing for sure what
elements are causing your limitations...
I am researching inkjets, and am
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intrigued with the possibility of using the Epson 3000 with their PS
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rip, or the Epson 5500 with the BestColor rip (perhaps Designer
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Edition), or the Onyx.
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Your thoughts?
Either machine would make a good proofer, though the 5500 requires careful
lighting control due to metameric inks, and may not be capable of some colors
the 3000 can reach (and in turn may hit a few the 3000 fails to match, in the
yellows) The Epson StylusRIP should not be considered as a proofing RIP, as
it lacks basic necessary functions for this, but the BestRIP among others
would allow the 3000 to do accurate CMYK proofing. Andrew Rodney should be
able to tell you just where the Designer Edition is in its ability to run
cross profile proofing with custom profiles. It seem to have reached that
point, but with certain limitations.
C. David Tobie
Design Cooperative
email@hidden