I did one today. I got about 13ft/L on a 100in screen. Calibrated as suggested. Was ok till 50%, then gamma started dropping slowly. Used white gamma control to pull down the gamma from 50-90% but at 80 and 90% had to pull it down a lot as gamma was about 1.7-1.9 at 80 and 90. Then saw coloration in the above white. I guess I need to revisit the client as I was not too happy and he had other things to do. This was after a 3hr session….
Not sure what the trick is.
