EverFocus 560 TVL Color Mini Dome Camera ED350 - Manual (Page 8)

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(3) Flickerless
When picture flicker fiercely, turn FL on, then the camera will stabilize the speed
of electronic shutter at 1/100(NTSC) or 1/120(PAL) automatically, and reduce the
flicker immediately.
The default setting is OFF.
(4) Auto Gain Control Adjustment
AGC ON: The sensitivity increases automatically when the light is low.
AGC OFF: A low-noise picture is obtained under a low light condition.
(5) Back Light Compensation Adjustment
When the background of the subject is very bright and the subject itself is dark, set
the BLC (Back Light Compensation) ON. The BLC will measure the light of the
image center and the lens iris will automatically set for optimum image quality.
(6) Ground Pin
For monitor use. When setting up the camera, connect a monitor to this video output pin
and to the GROUND pin using alligator clip cables, then use the image displayed on the
monitor, set the surveillance angle.