My kids were gone last night, so I spent some quality time tinkering with the TV.
I probably shouldn't even post these numbers they are so rough at this point, but why not? They are a dramatic improvement over basic adjustments... I also have some general info numbers for those interested.
First, the settings (incomplete and rough)
AV Mode: Movie
Color Temp: Low
All other features turned OFF
(NO GRAYSCALE AT THIS TIME)
It was 1 am by the time I got that far and 2 am before finishing a quick reality check with scenes from The Dark Knight and Top Gear 18 (UK). The image is much easier on the eyes. Literally. Less eye strain. Brighter, better depth and definition, skin tone skewed a bit red and colors perhaps a bit vivid for some tastes, though not garish like a preset. I think I would call it tastefully dramatic, like a HDR photo.
Clouding is essentially gone. I couldn't see it at all during normal viewing even BEFORE these adjustments, but now I have to look for it to find it even during credits and the POST screen when the PC boots. It was helped somewhat by a good screen massage with a microfiber cloth damped with RO water. Settings did the rest. I suspect that as the set ages and the crystals and panels settle the clouding will disappear entirely.
Here begins the boring numbers section for the nerds...
Before the CMS adjustments above, I took a series of luminance readings from a 100% grey (white) window. I went from setting value 0 to +16 and luminance reading increased roughly 1 fL with each step starting at setting 0 = 19 fL and ending at setting +16 = 33 fL. AFTER the CMS measurements I took the same series of measurements and found a roughly 2 fL increase per step starting at setting 0 = 41 fL and ending at setting +16 = 70 fL. (Setting -8 = 14 fL, setting -4 = 33 fL).
I took minimum luminance measurements twice. Once with the backlight set to max (70 fL) and once with it set to -4 (33fL). before each measurement, I rechecked the brightness and contrast settings. This returned results of .0236fL and .0113fL respectively. These are NOT cheated numbers. This was a proper checkerboard pattern. That works out to a 2955:1 contrast ratio with my dark room settings. i1Profiler reports the native contrast ratio at 2806:1, so we are not far off.
I measured all the gamma presets prior to making any adjustments and was surprised to find the Sharp leans HEAVILY toward the darker contrasty end of the range. Being presets, these are rough averages as the "curve" isn't "straight":
Setting +2 = 2.2
Setting +1 = 2.3
Setting 0 = 2.4
Setting -1 = 2.5
Setting -2 = 2.7
That's all I got for now folks. Depending on when my kids get back tonight, I may work thru the gamma and grayscale...or it may have to wait until monday...