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SportsShooter.com: Member Message Board

CMYK gamut failure
Hal Smith, Photographer
Sedalia | MO | USA | Posted: 12:09 AM on 02.14.10
->> Occasionally when I do a CMYK conversion with a highly saturated natural red, blue, green the color will shift to a different desaturated hue.

How do I compensate for that shift, and compensate in such a way that the gamut failure is less obvious to the rip and my eye?

I know to some of you this might sound silly, but it is a problem that bothers me and I know it can be corrected well without doing all that much visual harm to final printed product.
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Nic Coury, Photographer
Monterey | CA | | Posted: 12:39 AM on 02.14.10
->> hey Hal,

My art director has had similar issues when changing some of my JPEG"s from RGB to CMYK and saving them as TIFF's.

In the workflow are you changing them to CMYK? I've found if I do the change first, then edit the photo, it works best for the colors.
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Jack Howard, Photographer, Photo Editor
Central Jersey | NJ | USA | Posted: 8:15 AM on 02.14.10
->> Soft proof it in Photoshop.

Make sure you've got your CMYK profile stored in Color settings, and under Menu>View make sure Proof setup is set to Working CMYK, then again under Menu>View, select Proof Colors from the dropdown and you will see where the color re-mapping is happening.
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Darren Whitley, Photographer
Northwest Missouri | MO | USA | Posted: 10:25 PM on 02.14.10
->> Hal,

Try adjusting the black channel. See if that doesn't bring back some of the saturation you want after you have changed the image to CMYK. The color channels have serious limitations to how saturated they can be in CMYK. By increasing the black channel, you may be able to get closer to what you're after.
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Thread Title: CMYK gamut failure
Thread Started By: Hal Smith
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