Re: Generations vs Piezo Color and Metamerism

["Robert Snow" <rssnow@1starnet.com>]

<x-charset Windows-1252>Scott:

To directly address your query about the
blacks...below are the average black RGB values I
have measured when doing fade tests:

On Archival Matte or HWM...don't remember which:
1270 OEM - RGB ~ 37
Gen 4 - RGB ~ 42
2000P OEM - RGB ~ 52 to 54
Piezo Color in 1160 RGB ~ 51 to 54

So based on the above, I would definitely say that
Gen 4 prints 'blacker' than the Piezo-C inks on
matte papers.  I might add that using the
Piezo-color inks on Epson's Semi-Gloss paper will
measure down in the 30's, making much deeper
blacks.

If I read your 'blacks' correctly on the net site
referenced, you are measuring about the same
results.

bob snow
-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-
----- Original Message -----
From: "Scott Hendershot"
<scott@praxis-systems.com>
Subject: Generations vs Piezo Color and Metamerism


....but I was left with a reduced dynamic range
due to the weaker black of the Color Piezography
inks.

I welcome any corrections or interpretations from
the group.
-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-

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