Mixed light

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Mixed light describes shooting situations in which light sources of different color compositions are represented at the same time. Depending on the type of light source, they can differ in color temperature or even completely in the composition of the color spectrum (e.g. fluorescent tubes ). Real neon tubes only shine in red, sodium vapor lamps only in yellow.

Typical situations are e.g. B. Recordings at twilight with a residual proportion of sunlight and street lamps, flash photos with a proportion of normal room lighting, fluorescent tubes and incandescent lamps .

In the recording situation, the different color composition is not or only insufficiently perceived, since human perception compensates for the color deviation “automatically” with empirical values.

Depending on the photographer's intention, mixed light can be a disruptive factor or a deliberate (or consciously accepted) effect. So z. For example, when taking pictures with flash light, the reddish / yellow coloration of incandescent lamp light provides a brightening of shadows, in which the shadows can still be clearly recognized as such.

example

Example of mixed light

The example image is recorded on daylight slide film. Correspondingly, picture elements illuminated by the flashlight are reproduced in the correct color, since the flashlight is based on daylight. The interior of the barn has the typical green cast of a fluorescent tube. The smear marks from the movement effect have a yellow cast from the halogen lamps in the modeling light of the flash unit.

See also: Available Light , Portal: Photography

Individual evidence

  1. ^ Kurt Dieter Solf: Photography; Basics, technology, practice , Fischer Verlag 1986, ISBN 3-596-23355-0 , p. 380