Digital BW, The Print

Thanks Harvey,

What you say about OBs does jive with my suspicions too. I looked at that
report once but it made me whoosy. Like you say, too many variables.

At this point I use a rag paper with OBs and shoot for something that looks
good now. You know, I do the best I can on longevity without compromising my
aesthetics. But I'm certainly not married to any of it. I could change my
mind tomorrow.

But for now, as far as yellowing and aging goes, I'm just gonna suck it up
and take it. Aged has charm, right? It might not be long before I can sell
my prints at "vintage" prices. ;-)

Todd


> Todd,
> My understanding on all of this is limited, and what I know (beyond my old
> museum and photography experience
> memory) comes from the paper:  Stability Issues and Test Methods for Ink Jet
> Materials, Barbara Vogt,
> Department of Image Engineering, University of Applied Science, Cologne.  The
> url, where the 62 page pdf can
> be downloaded:
> http://www.geocities.com/mortenryhl/index.html
> 
> That said, I think that degraded optical brighteners are yellow, but that the
> high end, non brightened papers
> are more 'creamy' (not yellow).  And that most papers that are brightened do
> not start off as bright as the
> high end 'archival' papers (like Museo or Epson Smooth Fine Art).  And *that*
> would lead me to believe (and
> this is total supposition on my part) that after the OBs degrade, the
> resulting base paper would be less
> bright than the high end ones.
> 
> As far as your suspicion that the coatings are the 'weakest link' in image
> stability I'm not sure.   The whole
> stew of acids, paper pulps, coatings, pigment vs. dye inks, humidity, light
> exposure, heat, ink particle size,
> buffering agents, ink colors reacting with one another etc. all enter into the
> mix....Scary monsters!
> 
> Check out the thesis above, it's very interesting.  What I really got out of
> it was that no one knows yet, but
> that soon, more will be revealled.  Frustrating, yes.  But...It's all new
> technology.
> 
> Harvey Ferdschneider
> partner, SKID Photography, NYC
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
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