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KCMU000004
06/08/01
BASIC INSTALLATION
, continued
3. Plug the connector into the auto-iris lens jack on
the front of the camera. The connector is keyed
and can only be inserted into the jack one way.
Installing
Video-Type
Auto Iris
Lens,
continued
4. Make sure that the E/I switch located on the back
of the camera is set to OFF.
5. Apply power to the 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.
Adjusting
ALC
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.
Adjusting
Level
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.
1. Set the back-focus of the camera before the final
adjustment of the video level. (See the section on
Back-focus Adjustment later in this manual.)
