* "AUTO" (Automatic follow-up system)
The purpose of this white balance of "AUTO" is for a TV
monitoring system, which installed to shoot a scenery
with wide angle. This automatic white balance adjust-
ment is performed by the detection of the average
picture levels of red(R), green(G), and blue(B) signals
picked up from the subject while they are balanced.
Under the proper condition, this incorporated function
is automatically compensated and follows up the white
balance for color temperature even when the camera is
panned during shooting, changed the color temperature of
a light source or changed ambient condition while "AUTO"
position.
However, this control system is not always perfect
, for
example, under a fluorescent light or when shooting and
closing up a subject with large colored area, this
control system cannot work properly and also cannot
obtain good color-imetry (color reproduction).
The purpose of the "AUTO" position is for TV monitoring
system for a scenery with a wide angle. If white balance
adjustment is not possible, use "AUTO SET" position.
* "AUTO SET" (Data holding)
Turning to "AUTO SET" after adjusted the white balance
for one or two seconds at "AUTO" position taking white
subject, e.g. white wall or white paper, the data of the
white balance will be held. And the white balance is
not change anything even if changed the illumination on
subject and the data will be held for about 5 hours
backing up the data.
Normally, set it "AUTO SET" position.
If you shoot more than 5 hours after the last white
adjustment, or when lighting conditions change,
re-perform white balance adjustment.
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