Re: Profiling CcMmYK vs CMYK inkjet printers
Re: Profiling CcMmYK vs CMYK inkjet printers
- Subject: Re: Profiling CcMmYK vs CMYK inkjet printers
- From: Glenn Kowalski <email@hidden>
- Date: Fri, 29 Dec 2000 22:26:13 -0500
Armand Rosenberg wrote:
Still using (profiling) an Epson EX with various glossy papers.
Skipping the "optimization" step in CompassProfile 2.54 for this
6-color printer (CcMmYK) and printing RGB files thru the Epson driver
eventually produces decent (RGB) profiles after a substantial amount of
tweaking with PS curves (I mean the PS curve that CompassProfile uses
when building the profile from the data). I measure with a ColorMouse
CM2C (colorimeter).
"Optimization" tends to produce very "muddy" profiled prints with the EX,
so I decided to skip it...
I've profiled a 6-color Epson 750 very successfully with
CompassProfile using the optimization process and no editing, curves
or anything--just a straight up profile. 125 patches might not be
enough. Go for 256, which is what I used. Of course, it helps to have
a Spectrocam : )
You also might want to take a look at the rendering intent for
output, and the process of printing through the profile altogether.
It's easy to get confused with the Epson drivers. Try converting the
document to the printer color space (Profile to Profile in PS 5,
Convert to Profile in PS 6), then printing with no color adjustment.
1) Is there a reason to think the 4-color inkjet printers are easier to
profile than the 6-color ones?
I don't see why this would be the case. It's still cyan and magenta.
If anything, it seems like a 6-color would be easier to profile
because it would have less apparent dithering, but I'll let the real
color geeks answer this one.
--
Glenn Kowalski
Macintosh Systems Consultant
Studio 405
www.studio405.com