Digital BW, The Print

I'm uneasy with Julian's answer, partly because I don't think we 
should say anything on our own authority because I don't think we 
know. I think we should point people to credible independent testers 
such as RIT and Wilhelm. If we do, won't they find color prints with 
longer lifespans than BW? My guess is that's only because some ink 
manufacturers have been investing in the testing longer than others 
or have been testing color but not quadtones. I think it would take a 
fairly long and elaborate answer to include such interpretive notes, 
and an even longer and more elaborate one to say anything very 
encouraging about ink-and-paper combinations not tested by any third 
party. That would be good to do, I think, and might result in 
something useful as a handout or enclosure, but I'm afraid it's a 
major project.

Sam


>Whenever I'm asked I always say better than colour and not as good as
>selenium toned silver.
>
>Julian
>----- Original Message -----
>From: "frankg_photo" <frank@...>
>To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>Sent: Wednesday, December 19, 2001 2:24 PM
>Subject: [Digital BW] print sales - longevity claims?
>
>
> > when you sell your "carbon pigment" prints (MIS or Piez), what claims
> > can you safely make regarding the archival issue.
> >
> > How long can you safely claim the print's integrity under 'normal"
> > hanging conditions in a home environment (which I'd say is a fair mix
> > of ambient(uv) & artificial (mostly tungsten) light.
> >
> > Dark storage, pollutant free, humidity controlled environments are,
> > of course, a little different.
> >
> > I realise this would be specific depending on which paper has been
> > used; but I'm just looking for some guidance- or a ballpark range.
> >
> > thanks
> > frank