Panasonic AW-E800 manual Adjustment, Color temperature and adjustment of white balance

ADJUSTMENT

Color temperature and adjustment of white balance

When carbon is burnt, it develops various colors of light depending on the temperature. Natural light can be specified by color temperature referring to the color developed when carbon is burnt.

The light of 3 200K (K=Kelvin, − 273C equals to abso- lute zero temperature 0K) represents the same value (color) as what develops when carbon is burnt at 3 200K (2 927C). The relationship between the color temperature of the light source and weather condition is indicated in the right figure. Let’s study the difference of shooting an indoor object from shooting one out- doors. Studios are usually lighted with incandescent lamps and the color temperature of a white object in a studio is around 3 200K. The color temperature of a white object outdoors is around 6 500K. The former may look a little yellowish while the latter appears somewhat bluish when they are shot by a camera. However, the human eye does not recognize color dif- ferences among these objects even under different ambient lighting conditions, because of their adaptabili- ty to light. The video camera reproduces color differ- ences with high fidelity and the color of an object some- what different from what appears to the human eye.

Therefore, there is a need to adjust the white balance in order to correct differences between color tempera- tures.

NOTE: Color temperature outdoors may vary depend- ing on weather conditions.

Blue sky

Rainy

Cloudy

AWC

Partly cloudy

ATW

Fine

Fluorescent lamp

Halogen lamp

Tungsten lamp

Candle

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