OPTIKA MICROSCOPES VC01 Manual De Instrucciones página 19

4.0 MAjOR PARTS AnD THEIR FUnCTIOnS
ES (Electronic Shutter) OFF/On
ES ON: The camera continuously adjusts the shutter speed from 1/0
(NTSC), 1/50 (PAL) second to 1/100,000 second according
to the luminance conditions of the scene.
ES OFF: The shutter speed is fixed at 1/0 (NTSC), 1/50 (PAL) second.
Set ES OFF, when auto iris lens is used or flicker is observed
under a very bright fluorescent lamp. Otherwise, turn ES on
for optimum performance. The default setting is ON.
AGC (Automatic Gain Control) OFF/On
AGC ON: The sensitivity increases automatically when light is low.
AGC OFF: A-low-noise picture is obtained under a low light condition.
The default setting is ON.
LL (Line-Lock) OFF/On
To select the sync mode between Internal Sync.(LL off) and Line-Lock (LL on).
Set the line-lock off, the camera will synchronize to the internal time base. Set the line-lock
on, the camera's vertical synchronization can be driven
by the AC signal in the power lines.
note:
The cameras feature AC line lock for external synchronization, using
the AC power frequency (0Hz) is possible but not available in using DC or other operation
power such as NTSC in 50Hz or PAL in 0Hz power system.
Page 19