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Explanation of terms
Automatic white balance
White balance adjustment recognises the colour
of light and adjusts so the white colour will
become a purer white. The unit determines the
hue of light that comes through the lens and
white balance sensor, thereby judging the
recording condition, and selects the closest hue
setting.
This is called automatic white balance
adjustment.
However, since the unit only stores white colour
information under certain light sources,
automatic white balance adjustment does not
function normally under other light sources.
The illustration above shows the range over
which the auto white balance functions.
1) The effective range of automatic white
balance adjustment on this unit
2) Blue sky
3) Cloudy sky (rain)
4) TV screen
5) Sunlight
6) White fluorescent lamp
7) Halogen light bulb
8) Incandescent light bulb
9) Sunrise or sunset
10) Candlelight
Outside of the effective range of automatic white
balance adjustment, the image will become
reddish or bluish. Even within the effective range
of automatic white balance adjustment, the
automatic white balance adjustment may not
function properly if there is more than one light
source. For light outside the functional automatic
white balance adjustment range, use the manual
white balance adjustment mode.
White balance
The images recorded by the unit may become
bluish or reddish under the influence of certain
light sources. To avoid such phenomena, adjust
the white balance.
White balance adjustment determines the white
colour under different light sources. By
recognising which is the white colour under
sunlight and which is the white colour under a
fluorescent light, the unit can adjust the balance
among the other colours.
Since the white colour is the reference for all the
colours (that make up light), the unit can record
pictures in a natural hue if it can recognise the
reference colour white.
Auto focus
The lens is moved forward or backward
automatically to bring the subject into focus.
Auto focus has the following characteristics.
≥ Adjusts the focus so that the vertical lines of a
subject are seen more clearly.
≥ Attempts to bring an object with higher contrast
into focus.
≥ Focuses on the screen centre only.
Due to these characteristics, auto focus does not
work correctly in the following situations. Record
pictures in the manual focus mode.
Recording distant and close-up objects at the
same time
Since the unit focuses on whatever is at the
centre of the screen, it is difficult to bring the
background into focus when close-up objects are
placed in focus. When recording people with
distant mountains in the background, you cannot
focus on both the subject which is close-up and
the objects which are in the distance.
Recording a subject behind dirty or dusty
window
The subject behind the window will not be
focused because the focus is on the dirty
window.
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