Colour temperature
Two sounds cannot be combined to produce a third pure sound but as we have discussed in Colour (page 12), by combining two or more colours a third colour can be created in which there is no trace of its constituents (e.g. red + green = yellow). The eye acts differently to the ear. The eye/brain relationship is in many ways far more sophisticated than a video camera and can be misleading when attempting to analyse the ‘colour’ of the light illuminating a potential shot.
A ‘white’ card will appear ‘white’ under many different lighting conditions. Without a standard reference ‘white’, a card can be lit by pink, light blue or pale green light and an observer will adjust and claim that the card is ‘white’. The card itself can be ...
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