Calibrating 4K

[NBPk402]

What do you use for calibrating software for 4K? I have various 1080P discs, but i don't know what is the best disc to use to perform a calibration.

[bmoney]

nothing as of yet.

although there ARE some hidden test patterns on sony 4k discs

[NBPk402]

Thanks, hopefully someone will come out with one soon as I would like to calibrate our family room 4k set.

[stridsvognen]

I found a set of patterns to measure grayscale in UHD HDR.. And that was a huge help to get the low level gamma tracking sorted out and get a understanding how the SMPTE 2084 works.

Ill think no matter what display you use you will need HDR convertion as no one will do 1000-10000nit..  Im using the Panasonic UB900 and its best to never use the gamma convertion adjustment to compensate for to dim display, turning the converter up adds white clipping, and as i see it you can get around that if you can just reach around 200-250nit, over that ill guess you can start turning the converter down.

[bmoney]

there is also an easter egg on 4k sony discs by hitting 7669 in the menu of the movies....it allows you to set white clipping