I have a c650
, but I know that many c650 owners end up looking at this thread, so I thought would cross post. Inspired by the huge amount of work I saw Buzz put in on his tv, I decided it was time to buy a new meter and calibrate my tv, I was starting to get really dissatisfied with my colors due to poor flesh tones, and really uneven colors. Sorry I don't have graphs, but my hd failed right after calibration!!
My i1 drifted and got too old, so I finally bought a new meter and bought Chromapure at the same time. Calibrated my c650, maybe the settings won't benefit anyone, but I can say one thing: the tv's color decoder is really wrong, and also just like cnet said about the c630 it really clips shadow detail. If you feel that you have those problems try setting your device to rgb and pushing up 1-4 rgb up to max on on the 10p white balance to resolve the problem.Notes
The target luminance is roughly 35 ftL or 120 cd/m2 for night, and roughly 60 ftL for day. The calibration was done for night (which was backlight=4) and then afterwards I set up backlight=10 with eco sensor=on, Min=4.
I calibrated the display to D65 grayscale, 2.22 gamma, Rec 709 color gamut.
I discovered in the course of the calibration that the c650 hdtv has an incorrect color decoder, which pushes green luminance too high and red and blue luminance are under-bright, these errors are 25-40%! Having the devices decode color, (that is using rgb) results in much smaller luminance errors. The CMS allows the errors to be further reduced so that blue ends up with only a 11% error and the other colors have less than 1% error.
The ps3 decoder clips all channels (as seen on Spears & Munsil, my other devices do not, so the color calibration (but not grayscale) had to be redone for the ps3, but the luminance errors were still much less than the tv!
The brightness and contrast settings were left at default, and sharpness reduced to 0.Grayscale
Warm 2 is the closest to D65 (neutral whites), but has too much green, and not enough red. Also the above 50% stimulus at gamma=0 is close to a gamma of 2.2 point by point, but below 50% stimulus the gamma is too high. The result is the default setting clips shadow detail.
Color Tone: Warm2, gamma: 0
White Balance: 24/24/24/27/13/21
10p White Balance: On
1: 8/6/5, 2: 10/9/9, 3: 9/9/9, 4: 8/7/5, 5: 2/2/2, 6: 2/2/2, 7: 2/2/0, 8: 2/2/2, 9: 1/1/1, 10: 0/0/0
Hdmi=low, ps3 outputs rgb=limited
R: 50/0/0, G: 10/44/0, B: 0/0/100, Y: 47/53/0, C: 17/46/50, M: 42/0/70
Hdmi=low, device outputs rgb
R: 50/0/0, G: 16/45/0, B: 15/0/100, Y: 43/45/0, C: 25/44/43, M: 40/0/65