On a B/W print, even in colour (not AWB) mode, the metamerism of the dye inks on monochrome prints is horrendous.
Sorry, pet peeve. But metamerism is a very good and useful attribute.
Metamerism is simple: two (2) samples with different spectra compared to each other with a given set of viewing conditions,
produce a match. Metamerism only applies to two color patches when they are compared. It is not correct to refer to one color from a given ink or paper and say that it suffers from metamerism. A "meterameric pair of color patches" means that they appear to match under a given illuminant. However, they may not appear to match under another illuminant. Metamers ("metameric stimuli") by definition are two different spectrums that appear to be the same color. If they don't look the same color, they are not metamers.
If you are viewing a print (lots of colors) and within differing viewing conditions, and there is a mismatch, this could be called a
metameric mismatch or
metameric failure. But its not metamerism. One sample (the print) compared to itself in differing viewing conditions, the proper term would be when they appear to match is color constancy and when they don't, color inconstancy.
The lack of a defined term for the metameric mismatch is the problem.
"
Metameric failure" is the best so far because it is unambiguous.