Datacolor User to User Support Group.

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:

> Granger rainbow as the active window, do a Custom Proof Setup
command in Photoshop, 
> and choose your monitor profile. Then select the gamut limit
command, and 
> watch the entire rainbow disappear... its all out of gamut. Do the
same with a 
> matte printer profile, and you'll lose nearly as much. A gloss
profile has 
> marginally more or the colors in gamut.
> 
They also give a superficial view of how out of gamut colors are
mapped by different rendering intents.  I believe this is more a
function of the Color Management Module (CMM) engine than an
indication of how good a profile is.

Disclaimer:  I don't have my color scientist lab coat yet.  Working on it!