Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, André Vallejo 
<avs@p...> wrote:
> Mitch,when you say  "I also like the absolutely neutral grayscale 
that
> ImagePrint gives, and
> the subtle toning that is possible with TintPicker." does it mean 
really
> neutral,comparable to a quad,under several kinds of light? Because 
I've read
> so many times that this is impossible with color inks(and it makes 
sense by
> definition) that I'd like to hear a liitle more from you about 
it...

The "several kinds of light" problem is called metamerism.   
Typically with the 2200 black and white prints look magenta under 
fluorescent light and greenish under daylight.   It IS possible to 
adjust your profile to eliminate the cast under a particular light 
source but that that only makes it worse under others.   The result 
is that out-of-the-box you can only get neutral black and white 
prints with the 2200 under one specific light source.

However, it turns out that the yellow ink is the worst culprit so 
several RIPs use color combo's that minimize this to achieve fairly 
metamerism-free prints, at the expense of greater coarseness, since 
the dither pattern then has less flexibility.   See some examples on 
my website:

http://studio-nelson.com/inkjet/bw22001.htm