Panasonic NV-VS3A - Understanding Focus Adjustment

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How
the
Focus
Adjustment
Works
If
you
look
at
an
object
through
a
magnifying
glass
and
move
closer
or
further
away
from
your
eye,
you
will
reach
a
point
where
the
object
becomes
clearly
visible.
Being
focused
or
in
focus
means
that
the
subject
can
be
seen
with
optimum
clarity
and
sharpness.
The
distance
between
the
fens
and
the
point
where
the
rays
of
light
come
together
is
called
Focal
Distance
or
Focal
Length
and
depends
on
the
size
and
shape
of
the
lens.
Human
eyes
have
lenses
too,
and
when
we
look
at
objects
at
different
distances,
the
shape
of
these
tenses
changes
automatically
so
that
we
can
always
see
the
objects
clearly.
@
Auto
Focus
Adjustment
The
image
of
the
subject
enters
the
Movie
Camera
through
the
lens
and
is
converted
into
an
electrical
signal
(video
signal)
for
recording
onto
tape.
Based
on
this
signal,
the
Auto
Focus
System
automatically
adjusts
the
focal
distance
by
moving
the
focusing
lens
forward
or
backwards.
The
focus
is
adjusted
on
the
subject
in
the
centre
of
the
Finder.