Pelco C2944M-F (1/09) manual Exposure Settings, Auto Exposure, Eclipser

EXPOSURE SETTINGS

Select this option to configure the exposure settings for the C10DN Series camera.

AUTO EXPOSURE

The automatic exposure feature automatically adjusts the electronic shutter and mechanical iris to set the correct exposure. Default settings depend on the selected profile (refer to Table E on page 18.) Select one of the following automatic exposure modes:

EXPOSURE SET.

AUTO EXPOSURE		-> ESC
ECLIPSER		-> OFF
DC IRIS LEVEL		-> -8
FLICKERLESS		-> OFF
AGC		-> LOW
BACK	EXIT

ESC: Select this mode for optimal brightness level by increasing the number of stored fields.

NORMAL: Select this mode to use the electronic shutter and manual iris to control exposure. As

lighting conditions change, the camera adjusts exposure based on input from the electronic shutter.

BLC: Select this mode for scenes that are strongly backlit. The camera corrects the image to bring out the detail of the subject, such as a person entering a building through a door.

BLC + ESC: Select this mode to make objects in the center of the scene brighter. ESC adjusts the shutter speed according to the incident light levels.

ECLIPSER

The eclipser feature adjusts a foreground image to compensate for a very bright background. With a			ECLIPSER
normal auto iris lens, when a bright backlight overcomes a dim foreground subject, the iris may not	ECLIPSER		-> OFF
compensate for the scene properly. As a result, details in the image are lost.
	THRESHOLD		-> 17
	LEVEL		-> 4
Use this feature in parking garages, parking lots, driveways, and other entrances with a variety of	BACK	EXIT
bright light sources.

NOTE: The Auto Exposure setting must be set to NORMAL to use the eclipser feature.

ECLIPSER: Select ON or OFF to enable or disable the eclipser function. When set to ON, the THRESHOLD and LEVEL settings can be changed. The default setting is OFF.

THRESHOLD: The threshold value identifies an adjustment for the foreground brightness. The range is 0 (zero) to 25. The default setting is 17.

LEVEL: The level value identifies an adjustment level for the lens to ignore the background. The range is 1 (light gray) to 8 (black); the default setting is 4.

To activate this setting, complete the following steps:

1.Set AGC to OFF.

2.Set AUTO EXPOSURE to NORMAL.

3.Set ECLIPSER to OFF.

4.Set the video output level to one of the following lens options:

•Video type lens: Set the response selector of the auto iris lens to AVERAGE. Set the video output level of the camera to 0.75 Vp-p by adjusting the LEVEL VR of the auto iris len.

•DC type lens: Set the video output level of the camera to 0.75 Vp-p by adjusting the DC IRIS LEVEL.

5.If the object in the foreground is dark (unrecognizable) and the background is predominant, set ECLIPSER to ON, and then set LEVEL to 4 or 5.

6.Adjust the THRESHOLD until the object in the foreground can be seen.

C2944M-F (1/09) 19