Re: Profiling ESP 7500: Yellow channel issues
Re: Profiling ESP 7500: Yellow channel issues
- Subject: Re: Profiling ESP 7500: Yellow channel issues
- From: email@hidden
- Date: Wed, 30 May 2001 12:29:37 EDT
In a message dated 5/30/01 2:22:55 AM, email@hidden writes:
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I'm having problems getting a good custom profile for my Epson 7500.
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I'm using a G4 mac, OS 9.1, PhotoCal/monitor spyder, Profiler Pro 2.1,
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Photoshop 5.5. The printer is run by a networked PC running Win 2000 server
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using Colorbyte's Imageproof RIP.
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The first attempts were using my colormouse with profiler pro's default
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settings. These profiles appeared to be clipping colors so I suspected
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that
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the colormouse was not up to the task of profiling the Epson pigmented
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inks
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or that there was an accuracy problem reading swatches by hand.
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Next I had some friends read my targets for me with their DTP41's. These
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profiles (both RGB and CMYK) had issues with the yellow channel. The
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ImageProof RIP allows you to use RGB profiles and their canned profiles
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print extremely well. The profiles produced this round introduced too
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dard
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and saturated yellows where there should be lighter and more muted yellows.
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All other color areas appear normal.
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I noticed that there seemd to be a linearization issue with the yellows
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on
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the output targets. Additionally, dot gain targets showed little change
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in
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the wedge all the way down to 40%. I'm pretty certain that I had CM turned
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off in the RIP and no profiles embedded from Photohop.
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Any thoughts?