EverFocus ED300 Series - Manual (Page 12)

Adjustments
Auto Gain Control Adjustment
AGC ON: The sensitivity increases
automatically when the light is low.
AGC OFF: A low-noise picture is
obtainED300 under a low light condition.
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.
Level Volume Control
The iris level of lens can be adjustED300 by the level control. Turn the level
control to the right direction and video images will become brighter; turn the level
control to the left direction and the video images will become darker.
9.