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Some of the technical terms used most often in video
camera technology and operation are explained hereunder.
Bayonet mount
A type of lens mount. The lens can be inserted into the
lens mount and fixed in place quickly by rotating the
mount lever.
Black balancing
To adjust a video camera while closing the lens iris
completely so that the portions of the camera signal at
the black level represent absolute black.
The pedestal level is adjusted so that the black levels of
the R, G and B signals are equal. See "Pedestal level?'
CCD
Abbreviation of Charge-Coupled Device. A semiconductor
imaging device to convert input light levels into electrical
charges, which are once stored and then output in the
form of electrical voltage variations.
Color bar signal
A test signal to be displayed as vertical bars of different
colors on a color video monitor. Used to check
chrominance functions of television and video
equipment, for example to check hue and saturation.
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.
Color temperature conversion
Conversion of the color temperature of a light source to a
particular reference color temperature (3200K for this
camera, for example). See "Color temperature?'
Field
One-half of a complete television or video camera picture
(or frame) containing all of the odd or even scanning lines
of the picture. See "Frame".
Frame
A single complete television or video camera picture
consisting of two interlaced fields. See "Field?'
Gen-lock
Abbreviation of Generator Lock. Locking the internal
sync generator of a camera with an external reference
sync signal.
Appendices
a
Appendices Glossary
| A-5(E)
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