Originally Posted by ConnecTEDDD
Jim, do you recommend for the 21xx users to perform for the start the 21-Point RGB Balance of the 1D LUT Table and later move to 17-Point Cube or skip the 1D LUT Table?
Because of the way the 1D LUT and 3D LUT interact near the gray vector, you still should do the 1D LUT first.
My brief synopsys of Radiance calibration is now (with Radiance at defaults):
Set black and white levels in display/projector using Radiance adjustable patterns.
Set 100% White-balance in display/projector using Radiance adjustable patterns (when possible, else use Radiance in 2-point 1D LUT mode)
Check Gamma and use Radiance Gamma-Factor for coarse Gamma
If you change Gamma-Factor, recheck Black and White levels.
Calibrate with Radiance 1D LUT.
Calibrate with Radiance 3D LUT.
Recheck grayscale. While we officially recommend to not change the 1D LUT after changing the 3D LUT, 1D LUT tweaks may help overall dE's.
If you have to calibrate the 100% White Balance in the Radiance, this might not stay calibrated with some calibration software if you auto-calibrate grayscale, and so you would have to manually calibrate grayscale. Many professional calibrators still prefer to calibrate grayscale manually, so this may or may not be an issue.