Re: Neutral grey under different lighting
Re: Neutral grey under different lighting
- Subject: Re: Neutral grey under different lighting
- From: Ray Maxwell <email@hidden>
- Date: Sun, 02 Sep 2007 23:59:53 -0700
Scott Martin wrote:
Fuji Crystal Archive and Kodak Endura are surprisingly susceptible to
metamerism - more so than modern inkjet inks. I suspect this is what
you are seeing and it is common. Less archival papers like Kodak
Royal are less susceptible to metamerism yet less archival.
Just to be clear...
The word 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
illuminate. They may not appear to match under another illuminate.
If it was not for metamerism, none of our three color reproduction
systems would work. Because of metamerism we are able, using only three
colors, to cause the human vision system to perceive a match between
this tristimulus reproduction system and full spectral pigment.
Metamerism is not a fault in a given color reproduction system.
Metamerism is a good thing.
For a more full explanation, see this URL:
http://en.wikipedia.org/wiki/Metamerism_(color)
It is also a good idea to read about Color constancy on this same page
or click on the link for a full explaination.
Cheers,
Ray Maxwell
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