QTR-Quadtone RIP

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