QTR-Quadtone RIP

Interesting stuff..

EEM obviously yellows within one year...maybe that plateaus at a 
certain point, and I don't think that means it's totally 
"non-archival," but I've learned to hate it. If Wilhelm's calling it
archival, he should look again.

Moab Kayenta starts whiter than EEM and seems to stay that way...and
it's allegedly not whitened... and it's less expensive. 


--- In QuadtoneRIP@yahoogroups.com, "Gary Reese" <pcacala@...> wrote:
>
> I met Henry Wilhelm this past week at the WPPI convention here in Las
> Vegas. It was my chance to ask him some print longevity questions
I've had,
> including the advantages of QuadTone RIP. He suggested that by using
> QuadTone RIP, one could get 2X the WIR rating he reports for B&W
with the
> Epson 2100/2200 print & Epson driver, so long as the image wasn't
"toned"
> in QuadTone Of course, by toned, it means adding aditional amounts
of the
> least stable pigment - yellow - to the image matrix to get a warm or
sepia
> image. I suppose that it could also mean adding cyan to get cooler
tones,
> although cyan is more stable than yellow. Thus, it would seem that
toning
> in QuadTone RIP would yield a WIR Rating intermediate to Wilhelm's
results
> for the 2100/200 with Epson Driver and his 2X prediction for a neutral
> QuadToneRIP image.
> 
> Another important tidbit of information was that Epson Enhanced Matte is
> not acid-free, with the coating being the main acid culprit. Wilhelm
agreed
> with me that Ultrachrome and Ultrachrome K3 pigments will likely outlast
> the paper itself.
> 
> For more information on WIR Ratings, see:
> http://www.wilhelm-research.com
> 
> Gary Reese
> Quiet Places Photography
> Las Vegas, NV
>