Datacolor User to User Support Group.

----- Original Message -----

From: CDTobie@...

To: colorvision_group@yahoogroups.com

Sent: Monday, July 09, 2007 12:28 PM

Subject: Re: [colorvision_group] Yellow cast in shadows...

In a message dated 7/9/07 12:08:46 PM, douglaslenos@yahoo.com writes:

I am getting a yellow cast in the shadow areas on photos. I have had to
go into PSCS3 and select the area and drop the SAT on the yellows by as
much as -20 to get the print to look right.

I am printing on Kirkland premium glossy - and Epson Prem Glossy w/
Epson R1800 - profiled with ink using 756 target color and the BW
target. All other colors are spot on?


So you are throwing every possible patch in PrintFIX PRO at a printer that builds its neutral entirely from color ink. Precision is a wonderful thing, but it won't fix some issues. The light source you view images under will change the color tint of colors, especially darker colors, especially on glossy media, with the R1800. But that type of illuminant metamerism typically shows as a rusty tone in one direction, and a green on in the other.

I'd suggest you look at the media settings you are choosing to print your profiling targets. Even if there is one with the same name as the paper you are using, its not necessarily the best choice for custom profiling. See if you can get a better range of shadow tones from another media setting, then try profiling it. But don't bother with 729+238, just see what the standard 225 patch profile looks like first... also, be sure to let your targets dry before reading. In humid conditions, with glossy papers, three days might not be too much for some inks!

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@colorvision.com
www.colorvision.com


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