LG LCV5300R-BN Owner's Manual page 24

Menu Operation
AGC (Automatic Gain Control) setting
If the images are too dark, change the maximum [AGC]
value to make the images brighter. But noise is increase.
1. Select [AGC] option.
2. Use [LEFT] or [RIGHT] button to select a mode.
SHUTTER (Shutter Speed) setting
Select the desired shutter speed for camera exposure. You
can change the shutter speed to higher speed to capture
fast-moving subjects, though the image becomes darker.
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1. Select [SHUTTER] option.
2. Use [LEFT] or [RIGHT] button to set shutter speed.
Notes:
When the SHUTTER is set to AUTO, the picture
may become unstable if the camera faces a bright
fluorescent light directly. Therefore, take care when
installing.
Set the Shutter OFF when Color Rolling occurs in the
indoor scene. Recommend the Shutter Auto in the
outdoor scene.