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Screen calibration with different luminance values

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  • Screen calibration with different luminance values

    Hi,
    I use ACR and Photoshop for my editing.
    Lately I upgraded my screen and calibrated it to the general standard 120 cd/m2, 6500 K and gamma 2.2.
    The value 120 cd/m2 from a larger screen made it a bit harder to look at the screen for hours. So I began wondering why this value, 120 cd/m2, has been chosen as a common standard - AND if it would harm my images if I used e.g. 90 cd/m2 while others would still look at them at 120 cd/m2 (?)

    This is my thought experiment:

    If I select the value 254 for a highlight in a specific image with my screen calibrated to 120 cd/m2, I'll have to push the exposure slider to the value e.
    If I do the same with my screen calibrated to 90 cd/m2 I'll need to push the exposure slider to e+g to reach the value 254 for the same highlight.

    So, for the same image I'll end up with two xmp files with different exposure values.

    Question:
    Will those two images look identical on a screen calibrated to 120 cd/m2 - or will the e+g version now show 255+ in the highlights ???

  • #2
    This is out of my area, sorry. Let's hope Chris Tarantino is around. He's your man for that kind of thing.
    Learn by teaching
    Take responsibility for learning

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    • #3
      Then I am looking forward to Chris Tarantino coming around. Is their any way to accelerate that happening - e.g. by forwarding a link to him?

      Comment


      • #4
        Not really. You can try messaging him here if he has that enabled (click on his name in any forum post), but I don't think it would be appropriate for me to do it.
        Learn by teaching
        Take responsibility for learning

        Comment

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