Panasonic NV-RX3A - Page 36

Lighting Condition
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■ White Balance
in addition to sunlight, there are various kinds of electric lights in use today, such as incandescent lamps,
fluorescent lamps, etc. The colour of the subject differs depending on the light that falls on it.
•Human Eyes
can easily adjust to different kinds of lighting and recognize an object as having the same colour, even under
different light.
•Movie Cameras
do not have such an adaptability. Therefore, if the subject were recorded without any colour adjustment, the
lighting would influence the colouring of the reproduced picture, giving it a bluish or reddish tint. To prevent this,
an adjustment called “White Balance Adjustment” needs to be performed on the Movie Camera, either
automatically or manually.
■ White Balance Adjustment
This adjusts the Movie Camera to pure white under different lighting conditions. After white is set, the Movie
Camera can compensate for the colour in the lighting and adjust the other colours accordingly. As white is the
combination of all colours (light), if white colour is correctly adjusted, recording scenes with natural colours is
possible under almost any lighting condition.
■ Automatic White Balance Adjustment
To provide natural colours in the most common lighting situations, this Movie Camera has optimum settings for
these conditions stored in memory. It determines the colour of the light entering through the lens as well as
through the White Balance Sensor window and selects the matching colour setting from among the stored
settings. This function is called “Automatic White Balance Adjustment”.
However, as the optimum settings of only several types of light sources are stored in memory, the Automatic
White Balance Adjustment does not work with sufficient precision in all conditions.
In some cases, the Manual White Balance Adjustment should be used.
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