Images sometimes show colours that the photographer did not see when the photograph was made. But although the picture may look incorrect, the equipment is not always the problem.
If your wearing a White shirt - It looks white both indoors and outdoors and under different types of light, but it will often look quite different in photographs.
If photographed under tungsten light, it will appear orange. This is because tungsten lights exude allot of red wavelengths.
Even the Sun can affect light our camera sees as the sun produces different shades and temps.
Clouds not only affect the quality of light (how 'hard' or 'soft' it is) but also the colour, as clouds are made up of tiny particles that reflect light. They will often render a scene blue.
Close to the equator - More light throughout the day as opposed to being further away where the sun doesn't get so high, much more of a warm temperature throughout the day.
Reflections can affect colour temperature as well, such as water on a lake or white wall etc.
So, why doesn't a camera record the same colour as our eyes see?
Well, film is balanced for one colour of light. Typically most films are balanced for daylight on a sunny day where as in order to get pictures with a film light under tungesten light a night film would need to be used.
So why is it called 'colour temperature' and how is the colour temperature determined. It's measured in degres Kelvin. Colour temp describes the spectrum of light which is radiated from a "blackbody." A cold black-body radiator is called pure black. As this is heated according to the K scale. It changes colour from black to warm orange.
White hot is hotter than red colour temp. Blue sky is 10,000 morning/ evening is around 3500 K.
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