Digital BW, The Print

> > I've been in touch with the National Register of Historic Places
> > lately, and sent them a few 3MK prints on Moab Lasal done on 
> > my R1800.

> Do they do their own testing?

I don't believe so... here are two links from their site:

http://www.nps.gov/history/nr/policyexpansion.htm#digital

http://www.nps.gov/history/nR/publications/bulletins/photopolicy/photo_policy_checklist.htm

> > After studying Wilhelm's site, I see he approves of
> > the R1800 with K3 ...

> Do you have a URL for what you're looking at?  I assumed he just 
> tested the 1800 with OEM color inks in it.

Here's a link for the 2400 using 3K Ultrachrome and ABW. (I thought it
was for the 1800, sorry): http://www.wilhelm-research.com/epson/R2400.html

As you confirmed later in your message, this process does use some
color. Still, Wilhelm's projected longevity for these prints exceeds
the 75 year standard required by the Register, and therefore our 3MK
carbon prints should do just as well and better.

> > My basic thinking is that since carbon-based 3MK prints, with the
> > ABW touches of color pigment, easily meet Register standards 
> > pure carbon should be a no-brainer.
 
> Yes.  I'm curious where the "3MK, with touches of color" is coming 
> from.

I meant to say 3K, sorry.

> > I wish there were some way to get the 3MK process on 
> > Wilhelm's charts.

> So do I.  I've never had any significant contact with him.  My 
> impression is that his tests are just too expensive for little 
> outfits like MIS. 

His work has really taken off ... back in the 70's (dates me!) I
ordered a print washer from him as mentioned in the Whole Photography
Catalog, remember that spin-off of the Whole Earth Catalog? His
pioneering work with this excellent print washer was probably an early
presage to his interest in archival issues.

Paul