RE: "G7'ing" HP 6600 Press
RE: "G7'ing" HP 6600 Press
- Subject: RE: "G7'ing" HP 6600 Press
- From: Roger Breton <email@hidden>
- Date: Mon, 01 Apr 2013 17:08:43 -0400
No question in my mind that THOU SHALT MATCH an independent source.
Unless doing some kind of re-separation, as in ink optimizing.
The expectation is that the Destination will create appearances that satisfy
some criterion.
Otherwise, what's the point of transforming a Device onto itself?
Seems to be an exercise in futility...
Best / Roger
-----Original Message-----
From: colorsync-users-bounces+graxx=email@hidden
[mailto:colorsync-users-bounces+graxx=email@hidden] On
Behalf Of Bill Whitfield
Sent: Monday, April 1, 2013 1:28 PM
To: ColorSync-users
Subject: "G7'ing" HP 6600 Press
FYI - this is a cross post to similar posts I sent to PrintPlant.
I once heard Steve Upton say (my paraphrasing) - If the customer pays you
for the job, then you have successful color management. Not discounting that
pearl of wisdom, I am wondering if anyone would like to share the numbers
they received when "G7'ing" an HP 6600 press using the Esko DFE software. I
have concerns with the numbers I was able to achieve.
The Esko software allows one to build Color Strategies with a source profile
and a destination profile. I ran a P2P; used a version of SpotOn! to
identify correct densities; created curves to gray balance and then ran the
Esko profiling module to create a profile.
I then built two strategies. One has GRACol 2006 as source profile and my
profile as destination, and the other has my profile for both source and
destination. My numbers are below, with the first number from the strategy
that used GRACol as source and the second number from the strategy that used
my profile as source.
As a side note I will say that both strategies print images that look very
close to a GRACol 2006 proof. So, que es mas correcto, match proof; match
numbers; or customers check? (credit, maybe apology, due to Saturday Night
Live writers)
Cyan
L 51.61; 54.29
a -33.64; -36.77
b -47.99; -49.73
C 58.72; 61.85
H 234.79; 233.56
Magenta
L 49.96; 51.52
a 68.38; 73.73
b -2.65; -1.06
C 68.21; 73.73
H 357.61; 359.18
Yellow
L 83.17; 87.25
a -1.86; -4.55
b 84.52; 90.42
C 84.85; 90.4
H 91.25; 92.86
Black
L 13.31; 12.79
a -0.05; -0.03
b 1.23; 1.22
Red
L 48.23; 50.83
a 63.01; 67.78
b 44.23; 56.33
C 76.80; 87.88
H 35.05; 39.55
Green
L 47; 48.71
a -64.19; -69.69
b 21.06; 30.08
C 67.79; 76.08
H 161.74; 156.77
Blue
L 24.77; 21.24
a 13.06; 25.71
b -42.99; -47.48
C 44.82; 54.03
H 286.67; 298.38
Thanks to all that respond
-Bill-
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