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Author Topic: Monitor Profiling Questions and Issues  (Read 779 times)
dbm
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« on: May 02, 2014, 09:47:21 AM »
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Hi, Im having several issues with our i1 profiling software and i1 pro2 which we just upgraded too.  Some background have about 20 or so dell U2410 monitors all are similar in age and usage - to profile, along with some old cheaper dell toolbox monitors of various models and stages of life.  We are all on win 7, and all our boxes pretty much have the same hardware.  I'm using basic parameters for creating the profiles which are geared for print production based off discussions, research and testing which are:

WP - 5800k
Lumin - 100 cd/m
Contrast Ratio - 200
ICC - v2
TRC - 2.2
Profile Type - Table Based
Medium Patches

Issue one the best average DE Ive gotten so far, is about 1.5 averages, 2.5 max.  Id like to get lower, but I would be okay with all the U2410s coming up with about the same results.  That isnt happening though.  Using the same settings, Ive gotten the about 1.5 average on 3 of the 5 boxes so far.  The 2 problem boxes are for some reason always coming up at about 3.5 averages.

Issue two Once the 2 problem boxes restart, those bad profiles dont even seem to be recognized and/or applied, even though they are listed in Windows setting as if they are.

Issue three when using the same settings for both the main U2410 and the old tool box, there is a visible difference specifically in whites and greys, even though my final DEs are around 1.5 average between the monitors.  This issue is for all the 5 stations that have been tested so far.

Anyone run into some of these issues?  any help is appreciated. 
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digitaldog
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« Reply #1 on: May 02, 2014, 01:11:26 PM »
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I would but much credence in the dE reports for a lot of reasons we could go over. Just moving an instrument over to a different area can produce a dE of 1+ on much better reference display systems depending on what color you measure. The bigger issue is using the same targets and seeing visually that they don't match. Which suggests you have to alter the calibration targets to get that visual match. That's work, trial and error but probably something you'll have to do. It might be an issue with that low a cd/m2 too. If you up them to say 120-150cd/m2, any better across the group?
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Andrew Rodney
Author Color Management for Photographers
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Pictus
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« Reply #2 on: May 13, 2014, 08:21:16 AM »
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Will not help with your problem, but may get a better calibration by using Argyll+dispcalGUI
and using the hidden factory menu in the Dell U2410 to alter the RGB gain values.
Before altering any value there, best print a copy of the original values and stick at the monitor foot/back.
The 6500 in the factory menu = Standard Preset Mode.
« Last Edit: May 13, 2014, 08:46:29 AM by Pictus » Logged
jnewell
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« Reply #3 on: May 13, 2014, 01:18:02 PM »
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Perhaps some of the observations on this page may help?
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