The 43X750F's brightness ranges from 83.65-272.23cdm/2, and the contrast averages around 935:1 which is barely above average. The Sony is too dim for bright room use, and barely acceptable for light-less room use since it can only dim down to 84cdm/2. These results are disappointing when considering the fact that the 43X750F is one of the most expensive and highest end 43" TV's around, especially since IPS/PLS are capable of outputting 350cdm/2 with 1300:1 contrast.