Re: Newsprint G7 calibration
Re: Newsprint G7 calibration
- Subject: Re: Newsprint G7 calibration
- From: Klaus Karcher <email@hidden>
- Date: Sat, 24 Mar 2007 22:48:16 +0100
Roger Breton wrote:
Nothing to do with the G7 approach but look at
the clarity of this header:
ECI2002
ORIGINATOR "Ifra. www.ifra.com"
DESCRIPTOR "Ifra26L"
CREATED "30.06.2004"
INSTRUMENTATION "GRETAGMACBETH SpectroScan. D50. 2 degree. geometry 45/0.
no polarisation filter. white backing"
PRINT_CONDITIONS "Newspaper Coldset-Offset printing according to ISO/DIS
12647-3:2004. standard newsprint. screen ruling 40 l/cm ± 2 l/cm"
NUMBER_OF_FIELDS 11
The instrumentation is clearly labeled. Anyone can tell exactly how were the
measurements arrived at.
I have to disappoint you. It's fudged. AFAIK It's the average of about
10-20 runs on different presses. I can't believe that all of them were
created on 06/30/2004 with a SpectroScan ;-)
Klaus
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