Originally Posted by Wjboshart
1) break your set in for a while before bothering to do a calibration. These sets tend to settle after a hundred plus hours.
2) for sdr I'd recommend using the supplied Day/night modes. I use 2.2 for day and 2.4 for night but with adjust black at .005.
3) since there's no real standard for hdr, just watch whichever one looks best to you
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On the C8 I don't feel you need to adjust black to .005 like you needed to do on the older LGs. LG has pretty much fixed the black crush problem. I find I get better results leaving the black level at what's read at 0%. If you are worried about the value changing while you are calibrating, you can read black first then manually set it.
Sony 55A1E, A9F, LG CX
Marantz 7012, Ohm Walsh Speakers
Klein K10-A, Jeti 1501, Murideo Six-G Gen2
Calman Ultimate, LightSpace Pro, ISF Level III Certified