Some HDR patterns for CMS calibration use 1000nit luminance. I talk about why this isn't ideal and what I would recommend instead.
HDR CMS Profiling Using 1000nit Patters Is Incorrect
Calibrating HDR on Epson UB6050 / UB5050 / TW9400 / TW8400
Learn how to calibrate HDR on the Epson UB6050 / UB5050 / TW9400 / TW8400. This is a great projector to learn calibration on.
Display Calibration Guide – Volume 2: HDR
Display Calibration is a skill every Home Cinema enthusiast should have! However, the guides out in the wild aren't necessarily the easiest to get to grips with - or provide all the permutations of calibration options in one place. The Simple Home Cinema Display Calibration Guide - Volume 2 is here to fill that space for HDR (High Dynamic Range) Calibration.