Originally Posted by mpgxsvcd
I 100% agree with all of the statements in this post. I am not going to shame anyone for fully understanding what calibration means and entails, and then choosing to calibrate their display. I just don’t want everyone to say that if your screen isn’t calibrated to REC.709 then it is worthless for REC.709 material.
It is up to the user to choose what works best for them. However, they cannot say they have a calibrated display unless they have 100% calibrated the display to all of the specifications of REC.709. That includes watching the TV with local dimming turned off and also at the level of 100 Nits. For most people that is not a better experience when their TV is capable of so much more.
I don't see any reason why having Local Dimming enabled in any way violates the specifications of REC.709. Yes, there will be blooming in some cases, but calibrating with APL patterns is going to be quite reasonable for adhering to REC. 709.
As far as the 100 Nits level, I would both agree and disagree --
1) The accepted range is 100-120, so calibrating for 120 (20% brighter) is acceptable.
2) This calibration is assuming that you are watching in a dark room. Anything other than a dark room is going to be a compromise on calibration anyway.
Because of that, I would say that in a dark room, 120 is correct, and anything else is somewhat wrong, but 'acceptable' if you really prefer to deviate.
Outside of a dark room, of course it is acceptable to use a higher brightness, since there is obviously a much larger impact on viewing conditions from bright ambient light than any "error" in raising the brightness.
I don't know about you, but most of my viewing when I actually care about accuracy is at night, with the lights off.
Other people are different ... My uncle seems to prefer keeping his house lit up like a Best Buy, with all lights fully bright, even when watching movies at night. Obviously for him, 120 nits is out of the question.
And with that said, 120 nits on a 75" screen in a dark room is not exactly "dim". My 940c has no problem generating 1200 nits with HDR content, but for non-HDR content, 120 is the limit at night.