Digital BW, The Print

For: Alan Zinn

> Regarding metamerism,   virtually all colorants - paints, inks, dies - 
> look
> different under different light.

Yes, all prints look different in different type of light -- but that 
is simply a fact stemming from the physics of light, not metamerism. 
Metamerism relates to the phenomenon of colors changing in their 
relationship to each other, although there may be a better and more 
precise definiton than my statement. An example: a black a white print 
without metamerism will have a different tone viewed under different 
types of light: warmer under tungsten and and cooler under fluorescent; 
a b&w print with metamerism would have a color cast in certain tones 
under one light and a different color cast in those tones under another 
type of light.

--Mitch/Potomac, MD