Re: Subject: Re: EyeOne Accuracy for FOGRA Proof Verification
Re: Subject: Re: EyeOne Accuracy for FOGRA Proof Verification
- Subject: Re: Subject: Re: EyeOne Accuracy for FOGRA Proof Verification
- From: "Danny Pascale" <email@hidden>
- Date: Sun, 10 Jun 2007 20:47:17 -0400
Hello Nick,
One thing I do when I calibrate an i1 for spot colors is to measure the
calibration tile before removing it from the craddle. I know what L*a*b*
value to expect (in D50, 2 degree Observer for example) and is also a check
to see if the device was well seated (Note: all calibration tiles are
different, and associated to the device firmware). Of course, when
instructed to calibrate in a profiling sequence you cannot do that, but it
can be done separately. This is far from a "full calibration", but is
nonetheles much better than a simple car warning light!
Danny
email@hidden
www.babelcolor.com
----- Original Message -----
From: "Nick Wilcox-Brown" <email@hidden>
To: <email@hidden>
Sent: Sunday, June 10, 2007 6:21 AM
Subject: Subject: Re: EyeOne Accuracy for FOGRA Proof Verification
This brings to mind a question I was trying to find an answer to
recently - Is there a recommended period after which an EyeOne should be
recalibrated?
The official answer is of course 'annually', but real world for a well
looked after device? Has anyone a recommendation?
Is there a way of doing a check on accuracy assuming the Diagnostic is
coming up fine?
Thanks,
Nick.
But when I went back later and re-measured I got a new measurement
of 4.83 –
which is now under the <5 dE –
On what printer, ink, paper combo.
how long time after the printing was the first measurement done and
when was the second done? I am of course suspecting that the print
has changed between measurements so you can fully expect the same
measurements.
Have you tried making several consecutive measurements, with
calibration in between and without? This will give you a more
accurate picture of the instrument variability...
Best Regards
Thomas Holm / Pixl Aps
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