What did you measure your max light output at for the THX Day mode? I measured around 38 ftL, and with my recent ISF Night Calibration (PB=medium), I hit about the same.
Doing my ISF Night calibration wasn't that bad with PB=medium... the gamma curve was relatively flat, and I didn't have to hit the 10p greyscale balance that hard.
ISF Day, with PB=high, was a different story. Setting the PB=high really screws up the gamma curve for me, with a reduced gain in the lower end, and a boosted gain in the higher end.
However, if I look at the RELATIVE curve, it looks okay... but I'm not sure if this would be acceptable to a calibrator.ChadB's calibration report
states that he hit a max light output of ~45 ftL. If I have my PB=high, I can hit a similar level, but I can't get the kind of accurate calibration that he does because of that screwy gamma curve.
Anyone have any ideas? If Chad could chime in himself that would be awesome