Re: Metamerism
Re: Metamerism
- Subject: Re: Metamerism
- From: "Bruce J. Lindbloom" <email@hidden>
- Date: Tue, 30 Oct 2001 15:16:27 -0600
I think maybe some of the confusion stems from the statement made by David
Wollmann who started this thread on 20 October:
>
I have an opportunity to drum scans of a large number of original 18x22
>
photogravures by Edward S. Curtis and a possibility of then making prints.
snip
>
I must be seeing the effects of metamerism because the prints look one way
>
in my viewing both, other way under tungsten, fluorescent and still
>
different in daylight.
I can interpret this in three different ways:
1) Each print (by itself) looks different when viewed under the four
different conditions: viewing booth, tungsten, fluorescent, daylight. This
is not metamerism.
2) David could instead have meant that each print, *when viewed along side
the original photogravure*, matched the original to a greater or lesser
degree, depending on the illuminaton. This is metamerism.
3) The unprinted paper of each print, when viewed in a given environment,
always looks "white" due to the adaptation of the visual system. It is
possible that after adaptation, a certain color could look greenish-brown
(relative to paper white) under viewing setup "A" and could look
reddish-brown (relative to paper white) under viewing setup "B". My
suspicion is that this is the case David was experiencing. Maybe this is
where flooberism comes in.
--
Bruce J. Lindbloom
www.brucelindbloom.com