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20 C2946M-D (6/08)
DC IRIS LEVEL
Select this option to adjust the electronic properties of the DC drive auto iris lens to the auto iris electronic properties of the camera. Perform this
procedure before using the camera or each time you change the lens.
To perform this procedure, complete the following steps:
1. Focus the camera (refer to Lens Focusing on page 25).
2. Aim the camera at a bright, flickerless scene.
3. Select DC IRIS LEVEL from the MAIN MENU.
4. Adjust the DC IRIS LEVEL value (for the best image). The range is -20 to 20. The default setting is -8.
5. Press the center of the button to save the value.
6. Exit the MAIN MENU.
FLICKERLESS
In some installations, the cycle of the fluorescent lights may interfere with the electronic iris shutter speed. Use this option to override the
shutter speed. When enabled, the shutter speed is set to 1/100 (NTSC) or 1/120 (PAL).
Select ON or OFF. The default setting is OFF.
NOTE: This option appears when AUTO EXPOSURE is set to NORMAL or BLC.
AUTOMATIC GAIN CONTROL
Automatic gain control (AGC) automatically adjusts the image when the light level changes. Most scenes benefit from AGC operation.
Select ON or OFF. The default setting is ON.
NOTE: You can also use the side panel button to enable or disable AGC.