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Panasonic NV-VS3A - Understanding White Balance Adjustment

Panasonic NV-VS3A
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79
How
the
White
Balance
(Tint)
Adjustment
Works
Video
recording
takes
place
under
various
light
sources,
from
sunlight
as
the
main
natural
light
source
to
a
wide
range
of
artificial
lignt
sources
such
as
fluorescent
lamps.
As
each
of
these
light
sources
has
a
ditferent
colour
temperature,
each
of
them
gives
the
colours
of
the
subject
a
slightly
different
tint.
Human
eyes
can
easily
adjust
to
different
kinds
of
lighting
and
recognize
an
object
as
having
the
same
colour,
even
under
different
light
sources.
The
eye
of
the
Movie
Camera
(lens),
however,
cannot
adapt
to
the
change
in
lighting
and
is
influenced
by
the
lighting.
Therefore,
depending
on
the
light
source,
the
picture
would
be
recorded
with
a
bluish
or
reddish
tint.
To
minimize
the
influence
of
the
lighting
on
the
colours
of
the
subject,
an
adjustment
called
White
Balance
Adjustment
is
necessary.
H
Auto
White
Balance
This
Movie
Camera
offers
both
Auto
White
Balance
Adjustment
and
Manual
White
Balance
Adjustment.
When
the
Movie
Camera
is
in
the
Full
Auto
Mode,
the
internal
system
of
the
Movie
Camera
automatically
determines
the
temperature
of
the
light
and
compensates
the
tint
of
the
subject
accordingly.
White
is
the
basic
colour
by
which
the
tint
is
determined.
Because
this
adjustment
is
performed
based
on
the
white
colour,
it
is
called
White
Balance
Adjustment.
The
optimum
settings
for
several
light
sources
are
stored
in
the
memory
of
the
Movie
Camera.
The
internal
microcomputer
compares
the
colour
temperature
of
the
light
received
by
the
White
Balance
Sensor
positioned
on
the
front
of
the
Movie
Camera
with
the
colour
stored
in
memory,
and
selects
the
setting
for
the
most
similar
tint.
Be
careful
not
to
cover
the
White
Balance
Sensor
(->
7)
with
your
hand,
etc.
:
@
Manual
White
Balance
Although
this
Movie
Camera
stores
the
optimum
settings
for
several
light
sources
in
memory
to
correctly
judge
the
white
colour,
it
cannot
cope
with
ail
light
sources.
Therefore,
to.
record
under
those
types
of
lighting
(«>
55,
57)
which
cannot
be
correctly
adjusted
with
Auto
White
Balance
Adjustment,
use
Manual
White
Balance
Adjustment.
(~>
56)

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