Interesting monitor calibration discovery department

It's not something like discovering the cure to cancer but it's very
interesting, nevertheless, to see how the EyeOnePro, left hung to the screen
for a prolonged period of time, can make all the difference in monitor
calibration. Today I calibrated my CG21 with basIColor Display 4.1.7. At
some point, I figured I'd better get the update, now at 4.1.12. So I
downloaded and installed the update, and ran the calibration again. With
4.1.7, I got an average of 0.66 dE94 and a max of 2.something. I thought it
was good but then I was curious, of course, to see how better or worse I'd
fare with 4.1.12? So I launched the calibration under 4.1.12 and went for
dinner. Same settings as before in 4.1.7. When I came back, the EyeOnePro
was still hung obediently to the display, I noticed -- I had completely
forgot about it. So, I saved the newly created profile and fired up the
validation, as a curiosity. The software gave me a decent 0.8 dE94 average
this time but a max of 5.6 -- ooh? What could have happened? I looked at
where the largest deviation occurred and it was in the shadows. Honestly, I
wasn't quite sure what to make of it at that point, so I fired up the
calibration and profiling again, and then fired up the validation again:
bingo! This time, I got a very honourable 0.26 dE94 with a max of 0.64, this
can't be bad, can it? So the verdict is in: for the utmost quality in
calibration and profiling with the EyeOnePro, in direct contact with the
screen, give it ample time to warm up to the display. Exactly along the line
of IDEAlliance monitor calibration certification routine, in fact. 

Did the Fogra Softproofing Handbook covers this aspect of monitor metrology
with the EyeOnePro? I got to read again...

Roger

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