Re: Ultrachrome 7600
Re: Ultrachrome 7600
- Subject: Re: Ultrachrome 7600
- From: "Dan Reid" <email@hidden>
- Date: Wed, 15 Jan 2003 11:49:12 -0700
on 1/15/03 8:35 AM, Todd Wellman at email@hidden wrote:
>
I have just finished installing my first few 7600 Ultrachrome printers
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(Proofmaster and Colorbyte RIPS) and have noticed a strangeness with the
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profiles. First is when viewing the profiles in ICC profileViewer the Hex
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views are "jumbled" up at the outer edges and second, the number of
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crossovers in the profile seem higher than with the dye inks.
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Is this the same reaction others are seeing?
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The gamut seems adequate for commercial proofing and the proofs are matching
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the provided samples.
Jumbled at the outer edges, you say? Too much ink for that color channel.
You need to restrict that primary so you get even separation in the shadows.
The increase in ink in the shadows can cause hue shifts too. Crossovers in
the profile indicate bad black generation settings in the profile software.
Despite these problems profiling does a pretty good job as the proofs are
matching your samples. IccToolBox really lets you know how *good* the
profile is though.
--
Dan B. Reid
RENAISSANCE PHOTOGRAPHIC IMAGING
http://www.rpimaging.com | email@hidden
Toll Free: (866) RGB-CMYK
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