Re: Mess at the Press
Re: Mess at the Press
- Subject: Re: Mess at the Press
- From: Chris Murphy <email@hidden>
- Date: Tue, 6 Apr 2004 10:44:24 -0600
On Apr 5, 2004, at 9:37 AM, Bill Whitfield wrote:
In the flexo world we seem to have no choice but to live with 100%
something (C,M,Y) with a tint of something else (C, M, Y) in our 100%
colors whether the proof is made by a proprietary system that uses
Device Links or an "open" system using ICC profiles because our 100%
printing colors do not match the 100% printing colors of the proofing
device. Is this not the case with other printing disciplines or do
they have the luxury of using printing inks that match the proofing
systems colorants? If not how does a Device Link specifically built to
maintain channel purity, maintain it? Please educate me.
A DeviceLink starts out as a simple concatenation of two profiles. So
100% yellow, for example can end up being contaminated even though
colorimetrically accurate. Many people in printing will accept slight
hue error to eliminate the contamination. Linkolator is a product that
can build DeviceLinks that do this.
Essentially what you end up with is a single profile, with direct CMYK
to CMYK control. Since there is effectively no three channel
intermediate space involved, the link can specify that 0,0,100,0 be
printed as 0,0,80,0 on the inkjet. I'm just throwing out a number, that
80% inkjet yellow might approximate a 100% yellow on press.
Twenty three years waiting for a relatively easy solution to making a
proof that matches my presses and the search continues. While I would
never call an ICC based proofing workflow relatively easy it did
appear to begin to have a world wide presence - now I am not so sure.
Make a list of what things you must have, and what things you want to
have but could live without and then go shopping. Test before you buy.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.