Originally Posted by JRobinson84
Am I the only one who prefers the look of Warm 3??
Originally Posted by IMWhizzle
No, you’re not the only one. I use it too since a couple of days, it just seems more accurate. Although I think that with HDR content the peak luminance will be lower because of it.
But for SDR content, gaming and HDR I think warm3 looks the most natural. The colors are better too because of it.
But what I would like to know is if DV content also benifits from warm3?
When you are checking the color temperature modes of a consumer display, each setting (warm1/warm2/warm3,cool etc) it doesn't mean anything, they are just some uncalibrated presets which doesn't follow any target white point standard, they are all uncalibrated modes.
While one of them will look more neutral to your eyes (when someone don't have instrument to measure and see which is the most accurate), its only a guess and personal choice of someone (without meter) which one believes its more correct. Calibration has to do with standards and references and not user preferences. But when someone don't have instruments to measure with software and see, the only he can do is to display a grayscale ramp and swap between selections, then decide which looks more neutral for him.
If you even take 5 samples of the same consumer TV model, these presets they will not matching also, when you will compare them visually or measuring them, that's why coping-pasting of calibrated TV settings is not working. Each sample of the same panel is different (for many reasons), so it needs it's own calibration.
Warm1/Warm2/Cool...don't say nothing unless you will measure them with instruments.
It happens (the most times) that the Warm1/2 to be more closer mode to D65 White Point, so for someone without measuring instruments, he choosing one of those modes, these factory modes as selections are still providing uncalibrated picture.
So Warm1/2 is still un-calibrated but closer to ideal.
When you have meters/software, it can happen a very old/cheap instrument to report that Warm1 is closer to D65 and a more expensive reference $10.000 instrument (or a brand new consumer) to report that Warm2 is closer preset to D65.
The reason where most of the times you (the DIY or Pro calibrators) are choosing Warm1/2 is because one of those presets will require less adjustment of the available calibration controls of a display during calibration.
When you have instruments/software, you can even make the cool preset to match D65 White point, just it's better make less adjustments while you calibrating because some times large adjustments of the sliders can introduce problems like distortions, discolorations, clipping, banding, posterization....etc.
Even having only your White Point calibrated perfectly, still doesn't mean that your picture will be good, you can still have sunburned skintones and vivid colors, unless you have meter/software to calibrated the Color Gamut also (and Gamma). This can happen because while your grayscale will be perfect, the color gamut can be completely different, for example when you watch SDR movie with a OLED native gamut which has primaries closer to DCI-P3 colorspace that from REC.709 colorspace of SDR movies.
We use D65 (which has been created with specific mixture of RGB...see below) which has 6504K because this is the white point the movies has been mastered (BD/UHD).
Each colorspace (REC.709 for BD / REC.2020 for UHD) while they have the same xy coordinates to create the D65, it's using different mixture of colors...while they have 6504K.
You can have 6504K temperature with different RGB channels mixture.
When you are using a meter/calibration software but you check only the Color Temperature Chart for the Grayscale, while the Color Temperature Graph can be perfect, the same time the RGB Balance Chart can be off.
This is happening because just a number 6504K is not the same as when we say D65 for a specific colorspace.
When you see the RGB Balance Chart of a calibration software and you see the three (R/G/B) Channels Bars at exact 100% = 0 dE; doesn't mean that you have used equal percentage of each color channel.
The calibration software it's doing the normalizing internally according to the selected colorspace target options to give you better presentation for easier calibration.
D65 White Point for REC.709 (BD Movies) Color Space is using Red 21.27%, Green 71.52%, Blue 7.22% which gives 6504K.
REC.601 (PAL...EU DVD) D65: Red 22.20%, Green 70.67%, Blue 7.13% which gives 6504K.
REC.601 (NTSC... US DVD) D65: Red 21.24%, Green 70.11%, Blue 8.66% which gives 6504K.
REC.2020 (UltraHD Movies) D65: Red 26.27%, Green 67.80%, Blue 5.93% which gives 6504K.
All these colorspaces are using D65 as reference white point.