metamerism and metameric color - more
metamerism and metameric color - more
- Subject: metamerism and metameric color - more
- From: "Ernst Dinkla" <email@hidden>
- Date: Wed, 20 Jun 2001 12:43:34 +0200
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----- Original Message -----
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From: "Igor Asselbergs" <email@hidden>
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To: <email@hidden>
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Sent: Wednesday, June 20, 2001 12:39 PM
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Subject: Re: metamerism and metameric color - more
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> > The Agfa Copyproof boxes where not designed by
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> > someone who has worked with Copyproof materials
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> > in a red lit darkroom. That was my conclusion when I
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> > used Copyproof more than 10 years ago. The white logo,
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> > Agfa etc disappeared more or less on the orange/red box.
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> True. But it has little to do with metamerism or chromatic adaptation.
In
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> red light a red and a white surface will simply reflect more or less the
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> same wavelengths. Had the logo been green, for instance, it would have
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> appeared dark grey or black.
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> But due to chromatic adaptation, the red box would probably have apeared
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> white after a while in the darkroom. (Well, sort of, anyway)
I'm fully aware that this hasn't anything to do with metamerism.
If you hadn't snipped your comments from the original message
it would be obvious why I mentioned this example.
Ernst