What is colour temperature?
Colour temperature is important to the digital cinematographer for a number of reasons. Technically it is vital that any light source that is to appear neutral in the final rendition of the scene is emitting light of the same colour balance as that for which the camera has been set up. Artistically it is important that the cinematographer has an understanding of the psychological and emotional effects of the colour of light within a scene and that they have complete control over this colour.
In order to evaluate and control anything we must have a unit of measurement and a means of measuring. We measure differences in colour temperature in degrees Kelvin (°K) sometimes using a colour temperature ...