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Appendixes
200
Glossary
Glossary
AES/EBU
A standard established jointly by the
AES (Audio Engineering Society)
and EBU (European Broadcasting
Union) for serial transmission of
digital audio. Two channels of audio
can be transmitted via a single
connector.
Aliasing
Distortion which occurs during
sampling to convert analog signals to
digital.
ATW
Auto Tracing White balance. The
white balance is automatically
adjusted for the lighting conditions
during shooting.
Bayonet mount
A type of lens mount. The lens can be
inserted into the lens mount and
quickly locked in place by simply
rotating the lens locking ring.
Black balance adjustment
To balance the black levels of the R,
G, and B channels of a video camera
so that black has no color.
Black set
A reference level for black balance
adjustment.
CCD
Charge-Coupled Device. A solid
state imager used in most video
cameras in place of a pickup tube.
The device converts input light levels
into electrical charges that are first
stored and then output in the form of
voltage variations.
Center marker
A cross which indicates the center of
the image on the viewfinder screen.
Clip
A recording unit. Clips are created
every time recording starts and stops.
Clip list
A list of locations in the material
recorded on the disc, arranged in any
order. Clips lists can be created with
the scene selection function of this
unit, and with the supplied PDZ-1
Proxy Browsing Software.
Color bar signal
A test signal which can be displayed
as vertical bars of different colors on
a color video monitor. This signal is
used to check chrominance functions
of color television and video systems
such as cameras and monitors.
Color subcarrier
In a composite video signal, a signal
superimposed upon the picture
(luminance) information for the
purpose of conveying the associated
color information. Color and
saturation information is conveyed
by the phase and amplitude of the
color subcarrier. Also called
subcarrier.
Color temperature
The temperature in Kelvins (K) to
represent the color of a light source,
determined by heating a perfectly
black body until its color matches
that of the light source. Color
temperature is higher when the color
is bluish and lower when reddish.
Composite video signal
A video signal in which luminance
and chrominance are combined along
with timing reference “sync”
information to make composite
video.
CRT
Cathode-Ray Tube. Video camera
viewfinders are equipped with a CRT
image display, so you can monitor
what you are shooting.
DCC
Dynamic Contrast Control. A DCC
circuit automatically adjusts the knee
point according to the amount of
incident light. A video camera
containing a DCC circuit can handle
a wide dynamic range of luminance.
Drop frame mode
SMPTE time code runs at 30 frames/
second, while the NTSC color
television system runs at about 29.97
frames/second. Drop frame mode
adjusts the running of time code to
eliminate the discrepancy between
time code value and actual time by
dropping two frames from the time
code value at the beginning of each
minute except every tenth minute.
E-E mode
Electric-to-Electric mode. When you
operate a VDR in E-E mode, input
video and/or audio signals pass
through electric circuits only and
then come out from the output
connectors, without passing through
electromagnetic conversion circuits
such as recording heads.
EFP
Electronic Field Production. The use
of electronic equipment such as
portable video cameras, VTRs, and
sound equipment for television
production outside studios.
ENG
Electronic News Gathering. The use
of electronic equipment such as
portable video cameras, VTRs, and
sound equipment for the production
of daily news stories and short
documentaries.
Essence mark
A type of metadata that may be set for
a specified frame.
Flare
Dark or colored flashes caused by
signal overload through extreme light
reflections of polished objects or very
bright lights.
Flange focal length
The distance from the plane of lens
mounting flange to the image focal
plane. Abbreviated to Ff.
Flicker
Repeated change of brightness on the
screen, caused by light sources such
as fluorescent light flashing at the
frequency of alternating current.
Genlock
Generator lock. To synchronize the
pulse generator built into video
equipment to an external reference
(master) sync signal.
HAD
Hole-Accumulated Diode. A CCD
sensor structure designed to suppress