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Yellow cast in shadows...

Yellow cast in shadows...

2007-07-09 by douglaslenos

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?

I take sports shots - think baseball - and under the visor/hat the 
shadow area comes out highly yellow in tint.

any thoughts on how to address this... Here a sample of a photo that I 
had to lighten and reduce yellow under his helmet

http://www.madisonmohawks.com/Galleries/baseball/2007/07-roster-trny-
15u-champs/pages/david.html

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

2007-07-09 by CDTobie@aol.com

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


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 See what's free at 
http://www.aol.com.

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

2007-07-09 by Doug Lenos

Thanks for the feedback - will do and report back.
Show quoted textHide quoted text
----- Original Message -----
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



**************************************
See what's free at http://www.aol.com.

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

2007-07-09 by Doug Lenos

BTW: Why the media settings? On the Epson what does this control? The amount of ink put down on the paper? Are you suggesting that I might get better real world results with a paper/paper setting - other than the one that appears to be best match (by name)... interesting... I'll try it.
Show quoted textHide quoted text
----- Original Message -----
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



**************************************
See what's free at http://www.aol.com.

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

2007-07-09 by CDTobie@aol.com


In a message dated 7/9/07 2:37:18 PM, doug@... writes:


BTW: Why the media settings? On the Epson what does this control? The amount of ink put down on the paper? Are you suggesting that I might get better real world results with a paper/paper setting - other than the one that appears to be best match (by name)... interesting... I'll try i


The profile can only work with that the printer can print. At a given media setting, if the colors available in the shadow zone are starved, then the options to choose from may be very limited, and poor color choices by the profilign software are possible (inevitable, actually). Give a better set of choices to the color profiling software, and it may be able to produce a better match.

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



**************************************
See what's free at http://www.aol.com.

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