Re: Who's right? I stopped trying to figure out
Re: Who's right? I stopped trying to figure out
- Subject: Re: Who's right? I stopped trying to figure out
- From: Bob Rushing <email@hidden>
- Date: Sat, 05 Jun 2004 22:14:44 -0400
Wow. That makes sense now. I noticed that when I saved a print job as a
PDF in the print dialog and then opened that PDF in PS, it indicated the
Generic RGB profile. I didn't know where this was coming from or what
was causing it. I bugged me because I was concerned that the Generic RGB
gamut was different from or smaller than my working space in PS that I
was using and that some of the colors were being changed, clipped or
whatever. Humm . . . . so that's why preview behaves the way it does.
Chris Murphy wrote:
On Jun 5, 2004, at 5:00 AM, Bob Rushing wrote:
If I would guess as to what is causing the magenta cast, I would
postulate that I know I'm converting my document into the printer
space (my particular work flow) in PS, not in the printer driver. So
I can only guess that this is why the magenta cast. Next, the magenta
cast document gets sent to the printer driver already converted into
the printer space. Since no color correction is set in the printer
driver , it prints correctly. from what I gather, you can never turn
off ColorSync so apparently it's always doing something and it's real
easy to ColorSync a document twice.. Huh? It's just my guess. . . . .
Good guess. In the year 2004 you'd think applications, printer drivers
and OS's could get along well and talk to each other properly but they
don't. OS X is completely ignorant of the fact there are professional
applications in the world that prematch data for output.
If things were smart it would be possible for Photoshop to tag the
print job with the output profile you selected, and it converted the
document with. The OS X could preview the document on-screen
correctly. But today, if Adobe did this, OS X would treat this as an
excuse to further color manage the job when you print as well, which
would then get you less than good quality results. So Adobe doesn't
tag the print job. Your image is converted for your 2200 but is tagged
with Generic RGB (which is what OS X does to untagged data it receives
from applications). Since it's a bogus tag, you get a bogus soft proof.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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