--- In DigitalBlackandWhiteThePrint@y..., Robert Rex <chameleon@i...>
wrote:
> At 03:36 PM 9/6/01 -0000, you wrote:
> {snip}
> > EAM is still a favorite with many people because of its good
blacks,
> > white base and it has a very smooth tonal range. It has also
> > demonstrated good image permanence in a number of tests people
have
> > devised. Unfortunately it is not acid free and its paper
permanence
> > is in doubt. The OBA content is there but window fading reports
> > suggest the fadeout of the oBA is not a big problem.
>
> the other thing to consider when using a paper containing OBA's is
what
> light will the print be ultimately viewed in. OBA's can shift the
> appearance of the image (and paper color) when viewed in flouresent
light
> vs. daylight vs. incandescent light. sort of a metamaric effect.
This is very true. We each work under our own blend of lights or have
our favorite viewing location for our prints but once they go out in
the world we no longer have any control of how they will be viewed.
If the UV content of the light is low, the contribution of the OBA's
will be less and their life longer.
Robert, I would suggest to you that a paper company that could bring
to market a paper with OBA's that don't fade and are "archival" would
have a real winner. I remember you mentioned there were some none
fading but very expensive OBA's. Perhaps a small amount of these
could be used or blended with less expensive OBA's to reach a
compromise position.
From your posts, I know that Crane is setting a very high standard in
this regard but I think that you will miss a portion of the market
that will either take their chances with the OBA's because they like
them a great deal or have an application where long life is not an
issue. Crane might want to consider keeping Museo but adding a new
paper using the same base but incorporating an OBA.
Martin
(snip)Message
[Digital BW] Re: EAM smoothness and 300g+ weight - impossible ?PhotoRag :-(
2001-09-06 by Martin Wesley
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