Re: Epson and Agfa Yellow ink behavior
Re: Epson and Agfa Yellow ink behavior
- Subject: Re: Epson and Agfa Yellow ink behavior
- From: Roberto Michelena <email@hidden>
- Date: Tue, 27 Mar 2001 09:08:17 -0500
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Out of curiosity, I compared our own custom Matchprint profile with our
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profiles for Epson Semigloss Photo paper. It so happens that the
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Matchprint profile fits entirely within my custom profile for the Epson
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dye inks. With the pigmented Epson inks (using the Premium Semigloss
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paper) there are chunks missing out of the green and red corners, but
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the gamut outlines on the flat CIE xy-chart still touch at yellow. In
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any case, our proofs look spot on with a Matchprint of the same CMYK
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file, yellow included, whereas the proprietary Imation Rainbow
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dye-sublimation proofs are only so-so (very pretty, but they don't match
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the Matchprint).
I believe it's the way you are comparing. If you are viewing a 2-D graph
projection (the xy-chart or chromaticity diagram) you might see your
matchprint's yellow as being inside your Epson's gamut. But if you look
at the gamut volumes in 3-D, you'll clearly see it sticks out. Matchprint
yellow is indeed of equal or lower saturation, but of higher brightness.
-- Roberto Michelena
EOS S.A.
Lima, Peru