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10.3.5 Gain Control
The gain control of the IVS can be set to automatic or
manual. When set to automatic, the brightness of the
video image is adjusted electronically.
If automatic control is selected, the IVS outputs the best
possible image brightness at all times. Light changes in
front of the lm camera are compensated by the IVS and
the brightness appears almost unchanged.
Gain control can be adjusted in two different ways.
It is possible to control it either using the keypad on the
IVS or by using the on-screen control menu.
Using the Keypad
Check all settings on a correctly adjusted monitor.
• By pressing the MGC key Ï the setting alters between
manual and automatic control. An LED above the
MGC key lights when manual gain control (MGC) is
selected aphoto.
• If manual gain control is selected (LED is on), the
brightness of the video image can be manually altered.
By using the Ê or Ë key brightness can be increased
or decreased. The automatic compensation of different
light levels in front of the camera is suppressed.
Video-Ait-Sytem