Digital BW, The Print

John

Unfortunately she's in between a rock and a hard place to a degree.  The
magenta cast is a classic problem printing B&W through a colour profile.
There are many ways around that for a totally B&W image but you mention she
has colour components to the image (even though it is largely B&W) which
forces a colour workflow upon her.  One suggestion is that she try a colour
RIP that performs better than the Epson driver on the B&W axis, eg
Imageprint, but it's not a cheap suggestion.

[Also, and not to do with your printing problem, she should really try using
a more sophisticated approach to getting the image to B&W, say a Channel
Mixer layer with a Mask revealing all - she can then paint on the mask with
a black rush to hide the channel mixer layer and bring back the colour
underneath. (She can also then change the opacity of the channel mixer layer
to soften the saturation of the colour components in the image.)]

Cheers

Steve

PS:  Glad to see the boys can beat the Poms even with just 14 men!


> From: John Malcolm <johnmalcolm@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Mon, 21 Nov 2005 09:37:49 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] Neutral B&W from RGB?
> 
> This is a B&W printing 101 question. Please humour me.....
> 
> A student of mine is photographing digitally then desaturating the
> images in PS. She is then using the history brush to bring specific
> colour spots back into the image. The colour picker shows that the B&W
> portions of the image are absolutely neutral. Yet there is a magenta
> cast in the mid to highlight areas and green tones in the mid to
> shadow areas.
> 
> Can anyone suggest a workaround that will avoid these cross curves yet
> retain the colour spots? (Colorspace: Adobe 1998, Epson 4000, Epson
> enhanced matte and Epson EM profile, Epson driver.)
> 
> 
> Thanks
> 
> John Malcolm
> New Zealand
>