Hello,
I just got an i1 Pro 2 and will be calibrating a proofer tomorrow to the
Gracol 2013 dataset, which has the same white point and specifies M1. I
took M1 and M0 readings of a couple papers and I agree with your findings.
Sappi Opus is a pretty common sheet, which I have been using as a target
for years, and reads about -4b* in M0 and -6.5b* in M1. After I complete my
profiling tomorrow, I will report back.
Thanks,
Bret Hesler
Date: Mon, 26 May 2014 13:28:22 +0200
From: Jan-Peter Homann <homann(a)colormanagement.de>
Subject: [ECI-EN] Fred15 project - M1 paperwhite for PC1 coated
premium
To: "eci-en(a)lists.callassoftware.com"
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Message-ID: <53832556.2010104(a)colormanagement.de>
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...
One interesting topic is for me the question of the M1 paperwhite
characterization for "premium Coated".
The new ISO 12647-2:2013 defines the M1 paperwhite as L* 95 a*1 b*-4
- From my experience, the average of the most premium coated papers for
offset printing has a M1 paperwhite in the area of e.g. L*95 a*1,5 b*-6
...
Concerning hardcopy proofing, I would like to see a
recommendation of
a M1 paperwhite for semi matte proofing papers, which is very near to
M1 L*95 a*1,5 b*-6
Best regards
Jan-Peter Homann