How to adjust
White balance adjustment
Adjust the white balance after shooting a white object by at least 50% of the screen. NOTE: If the white signal level is over 100% or less than 50%, the white balance may not
be normally adjusted.
Color temperature and white balance adjustment (reference)
When carbon is burnt, it develops various | Blue sky | |
colors of light depending on the temperature. | ||
Natural light can be specified by color | Rainy | |
temperature reflecting to the color developed | ||
| ||
when carbon is burnt. | AWC Cloudy | |
The light of 3,200K (K=Kelvin, |
| |
to absolute zero temperature 0K) represents | Partly cloudy | |
the same value (color) as what develops |
| |
when carbon is burnt at 3,200K (2,927°C). | Fine | |
The relationship between the color | Fluorescent lamp | |
temperature of the light source and weather | ||
| ||
condition is indicated in the right figure. Let’s | Halogen lamp | |
study the difference of shooting an indoor | ||
Tangsten lamp | ||
object from shooting one outdoors. Studios | ||
| ||
are usually lighted with incandescent lamps |
| |
and the color temperature of a white object in |
| |
a studio is around 3,000K. The color | Candle | |
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 differences among these objects even |
| |
under different ambient lighting conditions, |
|
because of their adaptability to light.
The video camera reproduces color differences with high fidelity and the color of an object somewhat 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 temperatures.
NOTE
Color temperature outdoors may vary depending on weather conditions.
- 17 (E) -
