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.
I'm sorry that was it. I'm sure your accustomed to designers who are not tech wizards.
Unfortunately I don't understand it. Where does one find the black channel from the load gray. Photo shop takes me to my ColorSync Profiles.
Check this thread
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:
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:
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?
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.
My print magazine is both cmyk and greyscale. Peter, I already have CS6. In older versions when you tried to apply any type of FX to a 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. This is work but it does take some fudging to get the greyscale image perfect for the press. I will experiment. Thank you.
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.