A friend of mine just bought a brand new Apple iMac. I've the GMB i1Pro device, so I offered to do a cal/profile on his display. (According to the GMB license, I can legally install the i1 Match3 software on another person's machine.)
In the i1 Match 3 v3.6.2 wizard, I set the desired target values to 120 cd/m2, 6500K, and 2.2. I slid the brightness slider in the iMacs Display Prefs to minimum, but the lowest the iMac will go is 230 cd/m2. Is he simply stuck with a machine that is not designed to be properly cal/profiled?