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effects effecting half tones

Sep 7, 2011 1:00 PM

I'm have issues with the special effects causing my b/w half tones to go flat. It's really odd, if I use a drop shadow or bevel or any other effect anywhere on the page the photo goes flat. Any advice out there? Anyone know the cause or how to fix it? BTW this only happens in greyscale, not cmyk or rgb.

 
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  • Currently Being Moderated
    Sep 7, 2011 2:07 PM   in reply to Marcy McGuire

    When do you see it go "flat" upon export, print or on screen?  If export to what format and assuming PDF using what export setting?

     
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  • Currently Being Moderated
    Sep 7, 2011 3:10 PM   in reply to Marcy McGuire

    Well as luck would have it Peter Spier is answering the same question inanother thread here as we type.  Have a look at that.

     
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  • Currently Being Moderated
    Sep 7, 2011 3:23 PM   in reply to Marcy McGuire

    Probably the only real "fix" is to convert them to gray using the Black Ink channel for your CMYk target space.

     
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  • Currently Being Moderated
    Sep 7, 2011 3:25 PM   in reply to Marcy McGuire

    And would you minde removing the auto-signature from your email responses? You may get reported as a spammer.

     
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  • Currently Being Moderated
    Sep 7, 2011 3:47 PM   in reply to Marcy McGuire

    Yes, in Photoshop. I just put a screen capture in the other thread...

     
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  • Currently Being Moderated
    Sep 7, 2011 4:07 PM   in reply to Marcy McGuire

    No Idea what thread from 2002 you are talking about, but I just put a screen cap into http://forums.adobe.com/thread/900015?tstart=0 a little while ago.

     
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  • Currently Being Moderated
    Sep 8, 2011 2:44 AM   in reply to Marcy McGuire

    Sorry,

     

    Had to quit for the night.

     

    >" Photo shop takes me to my ColorSync Profiles."

     

    Pick the CMYK proile you are using for output. Photoshop will load the black channel for the gray profile.

     
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  • Rob Day
    3,142 posts
    Oct 16, 2007
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    Sep 8, 2011 4:45 AM   in reply to Marcy McGuire

    Check this thread

    http://forums.adobe.com/message/3484956#3484956

     

    Grayscales can be color managed with a CMYK profile. From Color Settings Working Spaces Gray choose Load Gray.. and then load the desired CMYK profile:

     

    Screen shot 2011-09-08 at 7.32.25 AM.png

     

    Screen shot 2011-09-08 at 7.33.00 AM.png

    Note that you have to click More Options and get the expanded Color Settings dialog for this to work. Also make sure the Grayscale doesn't have an assignment. You may need to choose Edit>Assign Profiles and choose your working gray space:

     

    Screen shot 2011-09-08 at 7.43.56 AM.png

     
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  • Currently Being Moderated
    May 11, 2012 2:01 PM   in reply to Marcy McGuire

    CS6 suuports expor to a grayscale profile, but I don't think that's what you really mean.

     
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  • Currently Being Moderated
    May 11, 2012 2:18 PM   in reply to Marcy McGuire

    Export to grayscale is more or less analagous to the exisiting conversion to CMYK or RGB options that allow you to leave images in their native color space and export a grayscale PDF (you used to have to Print to PDF to get composite grayscale). I don't think it is going to do what you want, but why not download the trial version and see for yourself?

     
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  • Rob Day
    3,142 posts
    Oct 16, 2007
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    May 11, 2012 2:32 PM   in reply to Marcy McGuire

    The problem you are describing only effects the preview of the layout, the change in preview has no effect on CMYK output. The original grayscale numbers are always output unchanged to the black plate when you export or print to document CMYK.

     

    You've always had the option to convert the entire layout to grayscale from the Print dialog and in that case your starting gray values could change. Peter's saying now you can also make that conversion via a PDF export.

     
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    May 11, 2012 3:54 PM   in reply to Marcy McGuire

    To my knowledge, nothing has changed in CS6 that would affect that.

     
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  • Rob Day
    3,142 posts
    Oct 16, 2007
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    May 11, 2012 4:14 PM   in reply to Marcy McGuire

    greyscale image it chaged the contrast and YES it did print this way. The work around was Peter's suggestion of changing the greyscale in PS to black plate only.

     

    That's because the InDesign black plate preview is more accurate than the default Photoshop 20% Dot Gain grayscale preview. When you change profiles the grayscale preview changes but the numbers don't—you can see that in Photoshop by checking the grayscale numbers in Info.

     

    When you load the more accurate profile in Photoshop the preview changes and you are adjusting the image accordingly. It's your image adjustment that's changing the output, not the profile.

     

    Even if ID did have a grayscale color space you would still have a preview problem if you used the default 20% Dot Gain in Photoshop.

     
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