On 29 Sep 2004, at 12:58, Becky Hill wrote:
I'm making black and white pics from colour by using the channel mixer and
on screen they look good. But the prints are coming with a colour cast of
green and I'm not sure what I'm doing wrong. Is it that I need a seperate
printer profile for black and white images?
Please help, it's driving me mad.
If the RGB values are equal in the info window when you scroll across the image, then you are trying to print black & white.
If you are printing to your printer with exactly the same settings as colour prints, and it has a cast then yes you need a new profile for B&W work.
Try making a selection of part of a colour image and reducing just that to B&W and print the whole image. Is the colour good but the B&W greeny?
As a work around you could try generating a curve adjustment layer and adding magenta, save the settings, Flatten it and print, then fiddle as appropriate until you get a neutral print. When its right you can load it each time you print a black and white.
Profiles are designed to give good colour across the entire gamut of the printer, it works them really hard to try and produce a good neutral, which is of course exactly what we want :-(.
2nd printer with B+W inks and profiled is the only true solution I guess.
Good luck
Matthew Ward
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