Topica TP-2006 AX, Инструкция по эксплуатации

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Operation & adjustment
7
(1)Install lens to the camera.
(2)Connect a cable between camera and
CCTV monitor and then turn on the power of
each device.
(3)To obtain the best picture, adjust the focus
and the diaphragrm while observing the
image plane.
(4)Back focus adjustment
If the subject is not in focus after adjusted
the focus of lens, it's need to make the back
focus adjustment. First, set the focus ring of
lens to the widest position and take picture of
the subject at a distance of 20m away from
camera.
Second, loosen the screw at the front panel
by L-shape wrench. Then, turn the lens and
mount at the same time. So the subject will
be in focus. Finally, secure the screw firmly.