Panasonic AK-HC910L manual White balance adjustment

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.

_ Colour temperature and white balance adjustment (reference)

When carbon is burnt, it develops	10000K
various colours of light depending on the			Blue sky
temperature. Natural light can be	9000K
specified by colour temperature			Rainy
reflecting to the colour developed when	8000K		Cloudy
carbon is burnt.		AWC
The light of 3,200K (K=Kelvin, –273°C
	7000K		Partly cloudy
equals to absolute zero temperature 0K)
represents the same value (colour) as	6000K		Fine
what develops when carbon is burnt at
3,200K (2,927°C). The relationship	5000K		Fluorescent lamp
between the colour temperature of the
light source and weather condition is	4000K	Halogen lamp
indicated in the right figure. Let’s study
			Tangsten lamp
the difference of shooting an indoor	3000K
object from shooting one outdoors.
Studios are usually lit with incandescent	2000K
lamps and the colour temperature of a
white object in a studio is around	1000K		Candle
3,200K. The colour temperature of a
white object outdoors is around 6,500K.		Colour temperature values
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 colour differences among these objects even under different ambient lighting conditions, because of their adaptability to light. The video camera reproduces colour differences with high fidelity and the colour 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 colour temperatures.

NOTE

Colour temperature outdoors may vary depending on weather conditions.

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