Explanation Of Terms; Digital Video System - Panasonic NV-GS50EN Operating Instructions Manual

Explanation of Terms

ª Digital Video System
In a digital video system, images and
sounds are converted into digital signals
and recorded on a tape. This complete
digital recording is capable of recording
and playback with minimal image and
sound deterioration.
In addition, it automatically records data,
such as Time Code and Date/Time, as
digital signals.
Compatibility with S-VHS or VHS
Cassettes
Because this Movie Camera employs a
digital system for recording image and
sound data, it is not compatible with
conventional S-VHS or VHS video
equipment that employs an analog
recording system.
The size and shape of the Cassette are
also different.
Compatibility with Output Signals
Because AV signal output from the AV
signal output socket is analog (the same
as conventional video systems), this
Movie Camera can be connected with
S-VHS or VHS video or a TV for
playback.
ª Focus
Auto Focus Adjustment
The Auto Focus System automatically
moves forward and backward the
focusing lens inside the Movie Camera
to bring the subject into focus so that the
subject can be seen clearly.
However, the Auto Focus System does
not function properly for the following
subjects or under the following recording
conditions.
Please use the Manual Focus Mode
instead.
1) Recording a subject whose one
end is located closer to the Movie
Camera and the other end farther
away from it
≥Because Auto Focus makes
adjustments at the centre of an
image, it may be impossible to
focus on a subject that is located in
both foreground and background.
Others
2) Recording a subject behind dirty
or dusty glass
≥Because the focus is on the dirty
glass, the subject behind the glass
will not be focused.
3) Recording a subject in dark
surroundings
≥Because the light information that
comes through the lens decreases
considerably, the Movie Camera
cannot focus correctly.
4) Recording a subject that is
surrounded by objects with
glossy surfaces or by highly
reflective objects
≥Because the Movie Camera
focuses on the objects with glossy
surfaces or on highly reflective
objects, the recording subject may
become blurry.
5) Recording a fast-moving subject
≥Because the focus lens-inside
moves mechanically, it cannot
keep up with the fast-moving
subject.
6) Recording a subject with little
contrast
≥Because the Movie Camera
achieves focus based upon the
vertical lines of an image, a subject
with little contrast, such as a white
wall, may become blurry.
-135-