Strange Kalibrierergebnisse mit NEC PA241W

    Hi,



    I recently bought the NEC PA241W monitor and wanting it to be calibrated right, a friend loaned me his X-rite i1 display 2. But the results are very strange. I'm new to this colour calibration but have read a lot these passed weeks about it. But still I can't seem to figure out the strange results. So I'm turning to you for help.



    I've tried 3 different pieces of software: Eye One match 3 (3.6.2), Spectraview II 1.1.0.7 and ColorEyes Display Pro. But after I calibrate, the screen looks way to green to me. And the deviation of the default settings is so huge I can't hardly believe that to be true for a screen in this pricerange.



    To start with Match, when I do the Easy calibration, it comes out like this (This is in High Bright with OSD set to 168 cd/m2 and Whitepoint set to Native):



    [Blockierte Grafik: http://home.planet.nl/~doele045/Easy.jpg]



    Which looks pretty good to me. Calibration on/off doesn't make a difference at all. But color temp and luminance are way off. So I started calibrating those in advanced mode with the OSD. And after I set those (and I have to go all the way up to 8900K in the OSD to reach 6500K in the software) I get the following result:



    [Blockierte Grafik: http://home.planet.nl/~doele045/Advanced.jpg]



    But now the screen looks way off and is very greenish.



    When I validate the profile that was made with Match in Easy configuration, in ColorEyes Display I get the following results (Target D65, Luminance 120):



    [Blockierte Grafik: http://home.planet.nl/~doele045/Result2.jpg]



    Which doesn't look good at all!



    So my question is, what is going on here? Is this right? Is the i1 Display off? Is the screen wrong? Am I not used to a "correctly" calibrated screen? Please help me, cause I want to start with my photos and not the screen.



    (Ich bin Holländer so beantworten Sie in Deutsch wenn English is zu Komplex)

    Zitat

    And after I set those (and I have to go all the way up to 8900K in the OSD to reach 6500K in the software) I get the following result


    Zitat

    So it probably is a faulty i1 Display unit.


    The main problem is that the filter solutions of consumer colorimeters don't reach the CIE standard observer function. Therefore an initial correction has to be accomplished - normally against a 72% NTSC CCFL spectrum. Deviations regarding the reference will lead to deviations in measurement. Other corrections can be carried out in software or you can use a different initial correction (HP and NEC provide their "own" EOD2 whose "special" correction can be accessed via their software). A colorimeter that matches the standard observer would be univeral, but even the Minolta CS 200 doesn't completely reach this aim.


    A reasonably priced product is the Quato Silver Haze Pro Bundle. It bundles the DTP94 from X-Rite (good inter instrument agreement and quite resistant to age - unlike the EOD2) with iColor Display 3 which has built in corrections for WCG-CCFL (92-102% NTSC) and White-LED (72% NTSC) spectra.


    Best regards


    Denis

    Gruß


    Denis

    You can use the DTP94 with SpectraView II but NEC doesn't implement corrections in their software. Unless you are calibrating a NEC without extended color space you have to use NECs EOD2 or a spectrophotometer (EyeOne Pro) to get accurate results.


    In iColor Display 3 you can switch on generic corrections for the WCG-CCFL backlight which are very feasible in combination with the DTP94. Because the NEC PAs are well factory calibrated have a powerful electronic and extensive OSD options a software calibration virtually is a hardware calibration.


    Best regards


    Denis

    Gruß


    Denis