Re: Creating a profile with eSprint on HP.
Re: Creating a profile with eSprint on HP.
- Subject: Re: Creating a profile with eSprint on HP.
- From: Roger Breton <email@hidden>
- Date: Thu, 05 Sep 2002 12:54:09 -0400
>
The 5000ps and the 50ps are examples of RIPs with prebuilt linearizations
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and Pantone tables for supported media, and I might use these printing
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systems as is.
I tried in good faith using the canned ICC profile that came with the 20ps
printer I had on loan (HP Proofing SemiGloss) after carefully linearizing
with the RIP linearization tool. The resultant colors were not very good in
terms of matching.
That is why I think anyone doing serious proofing work with this printer has
no choice but to build custom output profiles. And they'd be better invest
in a BEST Color RIP solution (or Designer Edition) otherwise I believe "this
system can't be used as is". Too many things going on inside that RIP in
terms of massaging color that I have no control of: eSprint may be a
solution but since I don't have access to BEST media, I can't tell.
>
Or I might add third party media in which case I might build my own profiles
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and Pantone tables using a spectro, print profiling software, and Lab-based
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PMS specifications.
I did not find HP's own proofing media to be particularely great or better
than all the other media I tried in it.
>
MPA in Switzerland offer the same MPA J35 for the 50ps as for the 5000ps.
>
Kodak Polychrome (previously Imation) offer the Design Base and Commercial
>
Base papers. Tecco / BEST offers quite a number of papers.
Yes, there is a nice selection of media available that will run on the 20ps.
>
Using third party papers on the 50ps is like using third party papers on the
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5000ps, pick an internal linearization table, linearize, print the test
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chart with color management off (whether CIEBased in the 5000ps or ICC in
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the 50ps), dry and measure.
Not quite. The dyes in the 5000ps won't brutally shift colors over a short
period of time like thos in the 20ps do. Give me 5000ps dyes in a 20ps and
I'll sell millions of these units! (figuratively)
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exist. So in using device profiles it may help to turn to a large test chart
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like the ECI 2002 which records the behaviour of the system in detail,
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choose large profile size for highest LUT resolution in both the simulation
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and destination profile, and use profiles which in the proofing conversion
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don't smooth data curves as ProfileMaker does not.
Where is this ECI 2002 testchart? And is it supported by any CMS yet?
Regards,
Roger Breton
Laval, Canada
email@hidden
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