Re: matamerism and proofing setup
Re: matamerism and proofing setup
- Subject: Re: matamerism and proofing setup
- From: Roger Breton <email@hidden>
- Date: Thu, 12 Jun 2003 10:51:38 -0400
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Wanted everyones opinion on my situation.
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Since all I do is fine art repro and depend heavily on input and output
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profiles, All my ouput is viewed in a gallery setup. Everything being lit
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with halogen par lights. I have made a viewing area in my facility with the
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same lights my work will be displayed under. In regards to building input
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and output profiles everything is all 5000K but none of my work is viewed in
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these conditions. Where would be the best place to start in regards to
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profile useage and building? I wish I lived in a perfect viewing world but I
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don't.
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What I am first thinking is make sure my gray is gray when viewed under the
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halogen lights. So I have to tinker with my base line linearization in
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BestColor to get a good gray before printing my swatches and building my
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profiles. I am not sure what direction to go in.
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Thanks
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_________________________________
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Kornreich Communications Inc.
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Steven Kornreich
I think Andrew nailed it right on when he suggested that you matched colors
to the halogen illuminant your prints are viewed under. At least, that's the
correct theory, IMHO. Although, I personnally have not had the chance to
experiment with the implementation of this idea in ProfileMaker. If it was
me doing your giclees, I'd make sure first I get a match under a D50
simulator illuminant, like a GTI light booth, just to put all the chances on
my side. And then, I'd measure the tristimulus values of those halogen bulbs
(Solux?) and use that to build the output profile, having measured in
spectral mode your test target, of course. And see what the match is
compared to your originals when viewed under the halogen. Be careful not to
conclude that the match is not good because of your output profile! You have
to think 'modularely' and debug your system 'modularely'. If your input is
your digital camera, how do you know you have a good match to your original?
If your input is your scanner, how do you know you have a good match to your
original. You need to answer those before you can even think about moving on
to transport those colors to your printer in order to be sure you're not
blaming the wrong device for not doing its job in your color chain.
And like Neil Snape said, I wouldn't thinker with the gray balance in BEST
linearisation. Leave that alone as you'll reduces your chances of getting
the best profile you can possibly get from your printer.
Roger Breton
Laval, Canada
email@hidden
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