Color Management for Black and White - Black and White in Photoshop CS4 and Photoshop Lightroom - page 18

To specify color settings in Mac OS, choose Edit Menu Color Settings
and in Windows choose Photoshop Menu Color Settings to bring
up the Color Settings dialog box in Photoshop. This dialog box is the
single most important place where color management information is
gathered and controlled - one box, one convenient location. As incredibly
color savvy as Photoshop is, however, it unfortunately ships out to users
set with sRGB as the default working space, which is not the most ideal
setting for print-oriented photographers. It is therefore necessary
to make some changes in color setting policies before image editing
begins.
Photoshop Color Management Policies and the Editing
Color Working Space
Color management policies are simply a set of rules dei ning protocol for
opening i les into Photoshop with or without embedded proi les. The color
working space specii es what colors (brightness and hues) will be available
when working in Photoshop. Whichever color working space you choose
to work in directly ef ects how many colors you will be able to see on your
monitor and potentially reproduce in the print. The color space choices for
image editing in Photoshop are Adobe RGB (1998), ProPhoto RGB, ColorMatch
and sRGB. (See “Set Up Color Working Spaces”, page 7 for dei nitions.)
Working Gray Policies
Grayscale does have its own governing proi les independent of RGB or CMYK.
However, it is important to note that the grayscale proi les do not contain any
information about the papers nor the color of the inks, which are all factors
in creating neutral values in producing black and white prints with desktop
printers. (See Phase 5 “Print Proi ling and Printer Settings”, page 25 for more
information.)