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Today's Topics:
1. Re: EIZO ColorNavigator and G7 validation (Todd Shirley)
2. Re: EIZO ColorNavigator and G7 validation (Marco Ugolini)
3. LCD Monitor Recommendation (Fleisher, Ken)
4. Re: EIZO ColorNavigator and G7 validation (Steve Miller)
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Message: 1
Date: Tue, 10 Feb 2009 14:06:19 -0500
From: Todd Shirley <email@hidden>
Subject: Re: EIZO ColorNavigator and G7 validation
To: ColorSync Sync <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Just a further note on verifying monitors to GRACoL2006...
In my shop we have about 15 Eizo CG10s and 5 CG11s. I've just tried
the ColorNavigator GRACoL2006 verification routine on 2 of each model,
with nearly identical results. If I calibrate and profile the monitor
to D50, L*, 140 cd/m2, I get a max dE76 of around 15 and and avg. of
around 5. This happened on all 4 monitors, so I guess that is just the
gamut of these devices. The worst patch is either 100C or the 100c,
100y overprint, both right around 15. If I switch to dE2000, indeed
the max is right around 6.7-6.9 with an avg. of 3, so I guess these
monitors do "certify" if the tolerance is dE2000<7.
If I change the white point to D65 (or 5500), that de76 max goes up to
around 20, so clearly D50 matters. Unlike Dan Reid, I found that
switching the measurement device's compensation table to "none" in the
ColorNavigator preferences had no effect on these numbers. I also
tried switching between my DTP94 and eye1, and that didn't change the
numbers either.
When I visually compare the gamuts in Colorthink, there is of course a
huge cyan/green wedge of GRACoL sticking out of the monitor gamut.
Does anyone find this disparity to be problematic in your workflow? Do
wide-gamut monitors really help people get better & faster results in
color matching? Has anyone tried to use soft-proofing and then been
"surprised" at how the cyans and greens hard-proofed or printed?
Just curios!
-Todd Shirley
------------------------------
Message: 2
Date: Tue, 10 Feb 2009 11:23:07 -0800 (GMT-08:00)
From: Marco Ugolini <email@hidden>
Subject: Re: EIZO ColorNavigator and G7 validation
To: ColorSync Sync <email@hidden>
Message-ID:
<email@hidden
>
Content-Type: text/plain; charset=UTF-8
Todd Shirley wrote:
If I change the white point to D65 (or 5500), that de76 max goes up
to
around 20, so clearly D50 matters.
If one has a viewing booth sitting next to the monitor, then the
white point on the display has to match that in the booth as closely
as possible, in both chromaticities and luminance. But if one is
working without a viewing booth, I would think that the white point
is far less relevant.
Whether the display's white point is D50 or D65, and as long as the
monitor is the brightest light source in the work environment, the
process of chromatic adaptation in the viewer's eyes will discount
the illuminant anyway.
Marco Ugolini
------------------------------
Message: 3
Date: Tue, 10 Feb 2009 14:51:59 -0500
From: "Fleisher, Ken" <email@hidden>
Subject: LCD Monitor Recommendation
To: colorsync-users <email@hidden>
Message-ID: <C5B7450F.B542%email@hidden>
Content-Type: text/plain; charset="ISO-8859-1"
Hello. Is anyone familiar with the Dell UltraSharp 2408WFP (Editors'
choice
CNET) or the LaCie 324 LCD (Monitor + Hood + Calibration Software)?
We are looking for new monitor purchases that can be used instead of
purchasing the Apple Cinema Display, which we are not satisfied with
the
current models. The screens provided by Apple, in the size range we
are
interested in, now have a high gloss finish on them. Additionally we
have
been somewhat disappointed with the quality of the screens for the
cost of
them with ghosting problems they develop before even the three year
point.
Can someone who has seen either of these monitors offer some comments?
What other options in the Cinema Display price range would you
recommend?
(at least 23² screen)
Thanks!
--
Ken Fleisher
Photographer
Imaging & Visual Services
National Gallery of Art
Washington, D.C.
Phone: (202) 712-7471
email@hidden
------------------------------
Message: 4
Date: Tue, 10 Feb 2009 13:52:46 -0600
From: Steve Miller <email@hidden>
Subject: Re: EIZO ColorNavigator and G7 validation
To: ColorSync Sync <email@hidden>
Message-ID: <C5B7372E.1F1B%email@hidden>
Content-Type: text/plain; charset="US-ASCII"
In my shop we have about 15 Eizo CG10s and 5 CG11s. I've just tried
the ColorNavigator GRACoL2006 verification routine on 2 of each
model,
with nearly identical results. If I calibrate and profile the monitor
to D50, L*, 140 cd/m2, I get a max dE76 of around 15 and and avg. of
around 5. This happened on all 4 monitors, so I guess that is just
the
gamut of these devices. The worst patch is either 100C or the 100c,
100y overprint, both right around 15. If I switch to dE2000, indeed
the max is right around 6.7-6.9 with an avg. of 3, so I guess these
monitors do "certify" if the tolerance is dE2000<7.
I have a few CG19's and
I'm getting the following numbers...
DE2000 Max 6.3, Ave 1.5, white pt. 1.0
DE76 Max 15.8, Ave 2.9, white pt. 1.0
If I change the white point to D65 (or 5500), that de76 max goes up
to
around 20, so clearly D50 matters.
I'm measuring my GRACoL 7 2006 coated1 proof white point inside my
GTI booth
instead of selecting selecting 6500, 5500 etc...
Unlike Dan Reid, I found that
switching the measurement device's compensation table to "none" in
the
ColorNavigator preferences had no effect on these numbers.
Switching the measurement device's compensation table to "none" didn't
change my numbers either.
When I visually compare the gamuts in Colorthink, there is of
course a
huge cyan/green wedge of GRACoL sticking out of the monitor gamut.
Does anyone find this disparity to be problematic in your workflow?
My CG19's have close to the same gamut as your monitors. We have
been using
the CG19's for 3 years now. We know they don't match GRACoL 7 proofs
exactly
but they get very close visually. As the DE2000 numbers indicate.
It's not a
problem in our workflow because we know the limitation of the
monitor gamut.
I've downloaded profiles of several newer Eizo models such as the
CG222.
I've compared the gamuts and the CG222 has a wider gamut than the
CG19. The
gamut still doesn't cover 100% cyan but it's a lot closer than the
CG19 at
about the same price. I would expect that the CG222 and other
monitors with
similar gamut size would have lower DE numbers.
--
Steve Miller
Norwood Publishing
1000 Highway 4 South
Sleepy Eye, MN 56085
507-794-8203
------------------------------
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