What are the values of white balance?

It can be understood that if the color temperature of the scene light is low, the camera will compensate it higher, and vice versa. The white balance "color temperature" (K) value on the camera is a compensation value. When the ambient color temperature is high, the value of (k) should be reduced by 4000-3000- or lower. It should be understood that a high ambient color temperature requires less compensation.

Commonly used reference values are as follows:

A color temperature value of direct light at different times: direct sunlight

Color temperature value (k)

Noon sunshine 5500

Two hours after sunrise, 4400

Two hours before sunset, 4300

4000 an hour and a half after sunrise

40 minutes after sunrise, 29 o'clock

30 minutes after sunrise, 2400

30 minutes before sunset, 2300

20 minutes after sunrise 2 100

Sunrise. At sunset 1900

B. Color temperature values of natural light in different seasons and weather conditions:

Changes of natural light March-May 6-August 9 -65438+ 101-65438+February

Direct sunlight 9- 15 hours 5800 5800 5550 5500

Direct dial before 9: 00 15: 00 and direct dial 5400 5600 5000 4900.

Sunshine+skylight 9- 15: 00 6500 6200 6200

Sunshine+sky before 9 15 after 6 100 6200 5900 5700

Sunshine+skylight 5900 5800 5900 5700

Cloudy day 6700 6950 6750 6500

Blue sky 27000140001200012000

C color temperature values of common artificial light sources:

Types of light sources

Color temperature value

Electronic Flash 5300-6000

1000-5000W halogen lamp 5000-6000

High color temperature carbon arc lamp 5500

White carbon arc lamp 5000

500W high color temperature photographic lamp 3200

500W photographic floodlight 3400

Photographic halogen lamp 3000-4000

1300W news iodine tungsten lamp 3200

200W ordinary light cannon 2980

100W Ordinary light bulb 2900

75W ordinary light bulb 2800

40W ordinary light bulb 2650

Candle lamp 1850