Theory Colour Temperature

Colour Temperature


Florescent5000k-6500k
  Incandescent






What is colour temperature?

Colour temperature is a way to describe the appearance of light. It is the temperature of an object that fully absorbed all frequencies of light and radiate the same colour as any given object. Colour temperature is measured in Kelvin (K). the higher the number the colder row hitter the colour becomes. There are a variety of different tools available for photographers to alter colour temperature within their images.

  • A Match Light - 1700k
  • A Candle light - 1850k
  • Moonlight - 4100k
  • Daylight -5000k
  • Solar temperature- 5770k
  • Common white light- 6500k

Black Body radiation

Back body radiation is used to describe or refer to the spectrum of light emitted and completely absorbed all frequencies of light. This is important in Photography as this allows for visible detection of temperature coming from any object, which then allows us to generate an image through our camera.

Mixed Lighting

This is where more tan one type of light is present at the same time for example a strobe and a continuous light being used at the same time. This is usually the case in any studio setting. In doing so this produces enough exposure to freeze an image which id provided by the flash. An example where mixed lighting does not work would be indoor lighting (tungsten) mixed with strong window light. These two light sources are both of different colour therefor will produce a very cool, blue/ green or a very warm red/ orange. In order to overcome the issues with mixed lighting we can counter balance by using lens filters and gels. These can change the colour temperature for almost any light source.


colour temp

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