Thank you, Mike. I could't have said it better myself. I stand behind my feeling and statement that the achieved numbers were quite good. The bottom line, and what Tod's question was originally about, was what is the best way to do these comparisons (color verifications) on a display - because most people already know how to do this on their proofing systems. So, I think it was a great question and one that many people are (or should be) asking themselves as they consider, or move towards, soft-proofing workflows. The new i1Profiler software was well thought out this way, works really well, and is my preferred solution for calibrating displays. Dan On Mar 31, 2012, at 3:00 PM, colorsync-users-request@lists.apple.com wrote:

Message: 1 Date: Sat, 31 Mar 2012 10:44:41 -0700 From: Mike Strickler <info@mspgraphics.com> To: colorsync-users@lists.apple.com Subject: Re: Comparing color performance on Displays (Kamil Tresnak) Message-ID: <6CBC2F3B-F13E-42FE-A3A9-5DE5DB41D7C7@mspgraphics.com> Content-Type: text/plain; charset=us-ascii

I haven't seen the blog in question, but your characterization of 1.05/3.10 as "middle class" for a proofing system is not correct, as anyone who installs these systems knows (and Dan is among this group). In fact, in general, only systems that have some sort of iterative "tuning" of output profiles (e.g., GMG, ORIS, XF can do better than this immediately after calibration, and even then the improvement is vanishingly slight and the ultra-low numbers rise very quickly as the printer drifts in regular use.

Mike

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Message: 12 Date: Sat, 31 Mar 2012 19:09:48 +0200 From: Kamil Tresnak <kamil.tresnak@centrum.cz> To: colorsync-users <colorsync-users@lists.apple.com> Subject: Re: Comparing color performance on Displays Message-ID: <20120331190948.91E8A082@centrum.cz> Content-Type: text/plain; charset=UTF-8

Dan:

Maybe i get you wrong, but number you are posted are "good middle class" rather than best on the planet, particulary if we are talking about "proofing systems" in general ....

Quote form your blog: "As you see here the results are VERY impressive with the overall average at 1.05 dE and the maximum at 3.10 dE. In case you know have no reference about dE values - these are as good if not better than any proofing system on the planet!"

Best,

Kamil Tresnak

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Message: 2 Date: Thu, 29 Mar 2012 16:03:39 -0400 From: Dan Gillespie <dgillespie@colorgeek.com> To: colorsync-users@lists.apple.com Subject: Re: Colorsync-users Digest, Vol 9, Issue 54 Message-ID: <0DC8CEB6-FC3A-4493-B1BE-61D6FF57CF57@colorgeek.com> Content-Type: text/plain; charset=us-ascii

Tod,

You can do this in the new i1Profiler software. You can compare to the 24 ColorChecker values or to printing standards/specifications like GRACoL or Fogra. You can read more in the blog I wrote about it here:http://everydaycolormanagement.blogspot.com/2012/01/eizo-vs-nec-monitor-cali....

Hope this helps,

Dan Gillespie 717.475.9007 Toll Free 1.877.COL-RMGT dan@colormanagement.com www.colormanagement.com | www.colormanagementgroup.com

Message: 1 Date: Thu, 29 Mar 2012 12:30:09 -0400 From: Hugo Caceres <hcaceres@gwmail.gwu.edu> To: colorsync-users@lists.apple.com Subject: Comparing color performance on Displays Message-ID: <CAMr1useOkzeAo_e-YhJF9_FxYb5DgqdF2Qwj9HRD1iNJ+h4avA@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1

Hello,

I was curious about how one can find an optimal standard set of colors in CIELAB to compare the performance of different liquid crystal displays to. For example, if I wanted to know how far the color reproduction of my display is to that of a defined set of colors, then I would measure the CIELAB of the 24 Gretagmacbeth colorchecker on the display and compare it to the known CIELAB values in the card. This will give me a Delta-E I can use to determine the difference. The problem is the CIELAB values of the display have very high luminance as opposed to the CIELAB values on the colorchecker. Does anyone know a why one can compare the colors of an LCD to a well-defined base that is reflective?

Regards, Tod Canete