For the control settings used in the viewing go to soundandvision.com. The measurements here were made using Calman software from Portrait Displays (portrait.com), together with Photo Research PR-650 and Klein K-10A color meters and a Fresco Six-G test pattern generator from Murideo/AVPro.
HD/SDR
FULL-ON/FULL-OFF CONTRAST RATIO: Unmeasurable
In the Cinema Picture Mode, with the Black level control at 50, Brightness at Max, Contrast at 90, Peak luminance at Medium, Gamma at 0, peak brightness on a 10% full