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Home › Forums › General Discussion › Obtaining a gamma of 2.15 instead of 2.2
Hi,
After calibration, using “report on a calibrated device” shows a gamma of 2.15. Should it be closer to 2.2, since that’s what I used for the tone curve?
My uncalibrated gamma is 2.3, but I assumed it would be better to keep using 2.2.
Profile is attached
Go to the verification tab and run a full report. The average gamma via “report on calibrated device” only takes into account the 1D calibration.
Hi,
I have included the full report done after calibration.
On the gamma curve, the measured gamma is always lower than nominal.
There is also a gamma average of 1.13 (1.15 median) when showing additional statistics.
Given my low knowledge into this, I am assuming that the reported gamma value is wrong. However, if I’m wrong, let me know.
Thanks for the reply,
In addition, since I’m using a TN display, I am assuming that the big “NOT OK” for Maximum ΔE*00 is normal, since it cannot reach true black.
It looks like the display has drifted a bit since it was calibrated & profiled, but still seems ok.
I am assuming that the big “NOT OK” for Maximum ΔE*00 is normal, since it cannot reach true black.
Yes, this is normal for displays with poor black level and/or poor black neutrality (you can correct for the latter using calibration black hue correction, at the expense of contrast). In your case since you are aiming for a very warm whitepoint, the effect is exacerbated.
I ran the verification just after calibration.
Calibration was on 17th, 16h29. Verification was at 21h the same day
It’s not the best screen for colour accuracy, but still…