Synchronization, The lens – Philips VCM 6110/00T User Manual
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Video output
A Standard VBS video signal is available at the cinch connector, (G)
fig. 1, on the bottom of the camera. The use of a 75 ohm coaxial
cable is recommended, for example RG-59/U.
Synchronization
The camera generates a Videosignal with synchronization pulses
corresponding to the CCIR-standard. The camera can be used
alone or as a part of a larger system. Synchronizing more cameras
is possible when an AC power source is used.
When several video cameras share the same video recorder
equipment, the video recording will be unsynchronized for a period
of time after switching from one camera to another. On the monitor
this is seen as rolling of the video image.
This effect can be avoided by locking the camera to the locai line
frequency: linelock. For this reason the camera is already locked to
the local line frequency when an AC power source is used. The
Vphase potentiometer, (C) fig. 1, enables a phase adjustment of
the linelock over 240 degrees.
The lens
Your camera is equipped with an integrated, 4 mm, f/2.0 lens,
(A) fig. 1, with a viewing angle of 74“ horizontally and 55“
vertically. The depth of field ranges from 1 metre to infinity.