COLOUR
'While our eyes and brain adjust continually to changing light conditions, a camera will not. You have to tell your camera what color light is illuminating your scene, and it needs to be adjusted every time the light changes. This is your “white balance” or “color temperature” setting, and if you are recording any format other than RAW, this setting permanently determines the color balance of your recorded image. It is imperative to get this right as correcting mistakes in post can be tough.' https://www.cinema5d.com/what-is-color-temperature/
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