Originally Posted by cpcat
THX mode is actually brighter overall than Custom (at least with custom at low panel brightness setting). Dave O measured 37 fl with THX and 26fl with Custom and this is consistent with what others have measured. This increased light output may be related to the reason why THX is clipping peak whites but that is only a guess on my part.
User menu settings in Custom do not effect those in other modes AFAIK.
THX has a different gamma than Custom
Approx 2.0 vs 2.2.
From experience THX works better for dark rooms and Custom For
Has to do with gammas.
This difference will give better performance when
color, contrast, and brightness are optimized for a true
As always, your personal tastes will be the judge.
I find that thx allows a better pic at low light setting than Custom and custom a better pic at high light