AVS Special Member
Join Date: Apr 2004
Location: Argentina, Buenos Aires
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My tv has color temp
medium is too blue and warm is to green
On user i have Red, green and Blue. This is where i´m trying to get a even neutral grey scale.
Still i don´t think i´ll be able to achieve that with those controls alone.
Because when i get the dark grey scale properly, Lighter whites looks blueish or reddish.
And if i get the lighter whites perfect, the darker grey scale looks greenish.
I have to chose to get one part of the grey scale correct. which one i should chose?
To get perfect whites with greenish dark? or get perfect grey dark with reddish/blueish white?
You didn't mention the brand and model of your TV.
A proper set of color temp controls consists of:
- a brightness/offset setting for each of the R, G, B (to adjust grayscale of the lower end, or the dark region); and
- a contrast/gain setting for each of the R, G, B (to adjust grayscale of the higher end, or the bright region).
So totally 6 controls. If your TV has only the R, G, B controls in the "user" mode, you might not be able to calibrate the grayscale properly. Whether to sacrifice the low end or the high end, it boils down to your personal preference. In general, human eyes is more forgive to the bluish bright white (in most cases of the real content your eyes are being fooled to perceive the bluish white is just a brighter white). So you may choose to give priority to the middle end (40% - 70%, which is the most important region), and secondly the low end, and finally the high end.
there is a very good reason why meters are used to do gray scale
yeah. I don`t mind to use warm setting in the TV but is so much warmer compared to my Monitor 6500º screen that bothers me. Specially because i do stream videos from my PC to the TV and not seeing the same picture on both bothers me.
I`m giving an optical calibration a chance, because even like this is more accurate representation of my monitor "6500kº" screen than the default warm setting.
Still not happy.
Skin tones looks artificial, pinky look in them, i think they are still having too blue and they are missing a bit of green.
But if i do tweak that, the lower grey scale will go to the greener side.
Your eye is so easily fooled about what shade constitutes white, it's the reason why there are absolutely no good ways to do white point with out hardware.
Weather that hardware is an optical comparator or a meter, you need something that is a reference. Inexpensive meters are now much cheaper than decent optical compartors.