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Signal to Noise Ratio
The ratio between a useful video signal
and unwanted noise. It is measured
in dB.
Slow shutter
An alternative.
Spot Filter
A graduated filter in a lens used in a lens
to increase the f-stop range of the lens.
Synchronization
Electronic pulses that are inserted into
the video signal in order to assemble
the picture correctly.
Vari focal Lens
A lens where the focal length
to be used can be set manually.
Video Motion Detector
A device that analyses the video signal
from a camera to determine if there
is movement within the picture.
Video Iris Lens
See auto-iris lens.
XF Dynamic
Extends the dynamic reange of
the Dinnion
XF
cameras to produce
exceptional images even in high
contrast lighting conditions.
Zoom Lens
A lens with the ability to adjust
the focal length from wide angle to
telephoto with minimum focus shift.
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