Calibration timing

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  • #21067

    Sakharov Alexander
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    Computing update. Already more than one hour.

    Really? More than one hour?  With that CPU usage?

    Mac OS Mojave, DisplayCAL 3.8.8, Davinci Resolve with DeckLink card, LG OLED., i1 Pro spectro.

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    #21070

    Florian Höch
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    I don’t recommend an i1 Pro for calibrating a high contrast device like an OLED. The i1 Pro’s dark reading capability doesn’t really cut it (it can read accurately down to about 0.1 cd/m2 in adaptive mode, but OLED requires several orders of magnitude lower than that), and also it is slow. Use the i1 Pro to create a correction matrix for a colorimeter (i.e. i1 Display Pro) instead, and use the colorimeter for actual calibration/profiling measurements.

    You may cancel the progress above, it is very unlikely to finish at this point.

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    #21073

    Sakharov Alexander
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    Florian, thank you for fast reply.

    Yes, I have i1 Display Pro also, and can make correction table. This is not an issue.

    The issue – DisplayCAL hangs up second time for today. So, no way to calibrate OLED with it. At list for me.

    #21111

    Florian Höch
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    So, what does “hang” mean, and where exactly does it not continue?

    #21117

    Sakharov Alexander
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    Well, it mean that DisplayCAL shows message as on screenshot “Computing update to calibration curves”, time at the lower line changing, nothing more happens.

    I wait about 1.5 hours, than close DisplayCAL.

    From Windows PC I use i1 Pro to create correction table, than i1 Display Pro for real calibration. It works.

    Didn’t find any way to check and correct RBG primaries and CMY secondary colors, as I can do in CalMAN Studio. Are there any option to do it in DisplayCAL?

    #21129

    Florian Höch
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    Well, it mean that DisplayCAL shows message as on screenshot “Computing update to calibration curves”, time at the lower line changing, nothing more happens.

    Can’t reproduce. Is the system stable otherwise?

    Didn’t find any way to check and correct RBG primaries and CMY secondary colors, as I can do in CalMAN Studio. Are there any option to do it in DisplayCAL?

    DisplayCAL strictly only supports profiling workflows, no manual calibration (except whitepoint). Also, some display’s color controls may introduce artifacts, so my recommendation is always to leave those at default.

    #21130

    Sakharov Alexander
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    Yes, Florian, the OSX is very stable on this Macbook Pro. Well, forget about it.

    Regarding RGB primaries – yes, can confirm that LG OLEDs could show artefacts in case of noticeable changes in CMS menu.

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