I was just trying this in RT5.1 but CIE C.A.M 2002 exposure is playing up. See how far I've moved the top point before clipping starts, and see relationship to histogram. This can't be right? Can someone else perhaps check if they get this (there are no other exposure adjustments, in fact very little generally going on apart from the CIECAM). If so, I'll report a bug. Thanks.