Digital BW, The Print

I put 4 grayscales out in my south window on 7/17. They are receiving 
10-12 hrs of ambient light a day, with 3-4 hrs in the afternoon being 
direct (but not over-head) sunlight. The window is 1/4 inch standard 
glass.

Two scales are coated with PremierArt, two are not. Of each pair one 
is MIS K4 printed in my R1800, the other Epson K3/SP3800. Each scale 
has a black mattboard strip covering the middle 1/2-inch.  Readings 
taken with a Colorvision spectrophotometer.

MIS coated: Start, 2.4   @ 3 months, 2.35    Epson coated:  Start, 
2.59  @ 3 months, 2.53

MIS uncoated: Start,  2.31  @ 3 months  2.25  Epson Uncoated: start, 
2.48  @ 3 months 2.41

Lifting the strip of black cardboard, I can't yet see a divider line 
between the covered and uncovered parts on any of the scales.


The 'b' value of the base started at -3.4, initially went a bit bluer 
(OBAs burning off?) now is drifting back towards yellow a bit, but 
none of the blueness shifts are visible. This continues to be a 
warmer than average base color for an RC paper, but with  no rapid 
yellowing visible, unlike SOME of the RC papers I've tested.

I like this paper, it prints with good presence and tonal separation, 
and the warmer base makes it easier to mat.


Steven Karafyllakis