When it comes to color management and calibration, reading in official/unofficial sources, there are different oppinions telling that the native display gamma value can be left "as is" = "native" (2.43 measured in my case)
on the other hand, gamma value could be set at 2.2;
How can I approach this, which is the "right" seein color, at native monitor gamma value or other value (e.g. 2.2)? if the gamma have any influence in the viewing process excepting all the other variables (room light condition, color temperature, etc considering these the same in both cases).
—Official source: page 96,97 of this book for example.
—Another source Argyll.com:
Adjusting and Calibrating Displays
By default, the brightness and white point will be kept the same as the devices natural brightness and white point. The default response curve is a gamma of 2.4, except for Apple OS X systems prior to 10.6 where a gamma of 1.8 is the default. 2.4 is close to that of many monitors, and close to that of the sRGB colorspace.
—Another one dispcalGUI documentation:
Why has a default gamma of 2.2 been chosen for some presets?
Many displays, be it CRT, LCD, Plasma or OLED, have a default response characteristic close to a gamma of approx. 2.2-2.4. A target response curve for calibration that is reasonably close to the native response of a display should help to minimize calibration artifacts like banding, because the adjustments needed to the video card's gamma tables via calibration curves will not be as strong as if a target response farther away from the display's native response had been chosen.
Of course, you can and should change the calibration response curve to a value suitable for your own requirements. For example, you might have a display that offers hardware calibration or gamma controls, that has been internally calibrated/adjusted to a different response curve, or your display's response is simply not close to a gamma of 2.2 for other reasons. You can run “Report on uncalibrated display device” from the “Tools” menu to measure the approximated overall gamma among other info.
That's why I am still confused.