10
3.4
VIDEO-TYPE
AUTO-IRIS LENS
INSTALLATION
AND ADJUSTMENT,
continued
5.
Apply power to the KC2200CN camera.
6.
Adjust the focus ring on the lens for an optimum
picture. If the picture is not visible, set the lens for
proper exposure by adjusting the ALC (automatic
level control) and Level on the lens. The ALC setting
can range between AVG (average) or PK (peak). An
AVG setting is appropriate for most applications.
For ALC adjustments:
AVG
To slow the reaction of the lens to
changing light, set the range on the AVG
setting to average the video level from the
camera. Use this when there are bright
spots in the picture, such as lights or glare
from the sun.
PK
To increase the speed of the lens reaction
to the changing light, set the lens
adjustment to PK so the lens will adjust to
the brightest or peak object in the video.
Use this setting if you want to see the
brightest object and not the background
objects.
For Level adjustments:
Adjust the Level control for the best picture during
the day. A night adjustment may not provide the
proper setting for controlling the light during the day.
7.
Set the backfocus of the camera before the final
adjustment of the video level.
See section 3.6 for
further instructions.
continued on next page
Содержание KC2200CN
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