Originally Posted by Grimmy84
This is the settings I found were the best
Use the film mode with Warm 2 for the most accuracte starting point.
Cell: 20 (best to max this out and adjust contrast instead)
I see from you and a few others, that in Europe, for D450, 'Cell Light' goes to 20, and in USA, it goes to 10. (For higher models, it goes to 20 in USA)
So, it must be the case that 20 = 10 for USA, and 18 = 9 for USA, etc.. So, we can't set the equivalent of odd numbers (19 would equal 9.5).
Contrast: 80 - anything higher and the gamme goes down i bright scenes for a washed out look.
Everyone seems to be setting Color similar to your setting, IIRC. However, even with your other settings, I still could only get raise the color to 43. I wonder why that is?
Tint: 50/50 (unchanged)
Sharpness: 0 (anything higher will add sharpening effects that reduce quality of the picutre).
Every fancy option should be turned off, such as noise reduction, skin tones etc (my translation might be off because my tv is in Swedish). Most should be off in film mode. However, I had to turn noise reduction on and then off for it to actually be off.
How did you know that NR (Noise Reduction) was really on?
I toggled this setting on my TV, just to be sure. I wonder what other settings might really be on; I haven't felt like toggling all of the settings.
Also set Gamma to -1. This will result in slightly to high gamme in dark scenes (less shadow detail) but any other value will result in very low gamma (note that -1 increases gamma...) for bright scenes and will make the picture look washed out.
Colorspace should be set to auto. Anything else will result in oversaturated and very inaccurate colors, especially green and red.
Once color and tint is set accurately, the colors will be good for everything except green that is a little bit oversaturated (i doubt most people will be disturbed by it). However, red will be close to excellent (deltaE = 4) and blue will be perfect (DeltaE = 1). The secondaries will also be reasonably good.
Now, because this TV set has the option to display one color at a time, you can actually calibrate color and tint without a colorimeter to as good values as with one (according to my measures at least). You only need a calibration disc (such as AVSHD709 google it) with flashing color bars. The trick is that when you show a blue only image, you should adjust color so that the flashing part of the bars is the same color as the surroundings. I strongly recommend that you do this if you do not have a colorimeter. It is the single most important way to improve pq.
I also suggest that you use red to adjust rather than blue (most commonly used) because red is so oversaturated and a little undersaturated blue is easier to live with than oversaturated reds (that makes people look sunburned).
Now for the white balance, this might be quite diffrent from set to set. But i found it to be over-redish as well as to much blue in it and reduced red gain to 10, and blue-gain to 22. This left the dark parts of the picture to low on red so I adjusted red-offset to 28. Everything else was left alone. This resultated in quite accurate greyscale with most deltae below 3, which is excellent. The only problem is a dip in blue at the same point where gamma dips (70 IRE) but this is stil within tolerable limits (deltaE = 8).
I had to reduce Red-Gain to 0, and left Red-Offset at 25. My changes are just by sight, I still haven't used an HD calibration disc, but I will soon.
I still wonder if there still isn't a bit too much Red, and even not enough or too much Color. HD cable channels vary so much, I try to go by the best PQ channels, but they still vary quite a bit. Even the best quality HD in USA, (IMO), is CBS-HD, I am not sure the picture is quite right, but the lighting varies so much, I need to see more programs.
To sum up, once calibrated this TV will give give good greyscale, gamma tracking and color. Thanks to the red-green-blue only mode you can accurately set color and tint without a colorimeter (there is not cms to adjust further) and the greyscale should not be far off in warm2 if you simply reduce red-gain.
Still there is much to gain from using a htpc with native resolution (better picture detail) and using a CMS in MPC HC along with a colorimeter. This is the way I use it now, and I get nearly perfect on everything, showing that this tv has great potential.
A final word of advice. Stay far, far away from entertainment or normal modes since they are awful in terms of picture quality. Further, altough warm2 is overreddish the other modes are even less accurate and simply add more blue to picture, given the whole tv a purple touch that is far from pleasing. If you do not like calibrating, then chooose warm 2 and then reduce red gain till you find the reddish tone is removed.
Note: These settings are for evening viewing in a room with controlled lightning. You might want to up gamma to 0 or even +1 in daytime, even though this will result in poor contrast in bright scenes. However, my contrast setting give quite a bright picture and you might want a lower one to reduce eyestrain. You can go lower, but not higher (because of the gamma problems mentioned). Note that with lowered contrast you will need to adjust brightness and color as well.
I find the Gamma at -1 to be good even in daytime, though it was only moderately bright.
Thanks for the great settings.