Re: Good demonstration of metamerism?
Re: Good demonstration of metamerism?
- Subject: Re: Good demonstration of metamerism?
- From: Ernst Dinkla <email@hidden>
- Date: Tue, 15 Jun 2010 12:31:20 +0200
Roger Breton schreef:
Absolutely! The key point here is, I believe, dissimilar "colorants".
In the case you describe, silver and dyes.
Best / Roger
One that works quite well is to have two black and white prints made, one
on
traditional silver halide paper and one on color print paper.
They can be made to match, but only under one kind of light. Hold them
side
by side under daylight and they may look alike but move the pair under
tungsten or poor fluorescent light and the dye print will look red while
the
silver print is always the same neutral tone. That's because the silver
molecules actually trap the light instead of depending on the reflectance
properties of dyes.
Traditional silver halide paper going way back to when there was no
OBA/FWA added to analogue B&W papers?
I would say add some of the best inkjet pigment B&W prints possible today.
A carbon black, quad B&W, inkjet print on a non-OBA paper like Canson
Rag Photographique may show less change in the switch from tungsten to
poor fluorescent light. Warmer in both cases but not as warm as a
Portriga print from way back. A neutral version then of that combination
giving a more consistent neutrality with both lamps. Probably more
convincing.
--
Met vriendelijke groeten, Ernst
Dinkla Gallery Canvas Wrap Actions
| Dinkla Grafische Techniek |
| www.pigment-print.com |
| ( unvollendet ) |
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