EverFocus ED550 - Manual (Page 15)

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5.4 Backlight
Even there is a massive backlight behind the object, bright images of the background and the
object can still be obtained by using the BACKLIGHT function.
1. Please direct the arrow to point to “BACKLIGHT” on the SETUP menu by adjusting the
switch to UP or DOWN direction.
2. Select the mode you would like to operate by adjusting the switch to LEFT or RIGHT
direction.
Ö HIGH: The gain increases from 0dB up to 42dB.
Ö MIDDLE: The gain increases from 0dB up to 30dB.
Ö LOW: The gain increases from 0dB up to 18dB.
Ö OFF: BACKLIGHT function does not operate.
5.5 AGC (Auto Gain Control)
1. Please direct the arrow to point to “AGC” on the SETUP menu by adjusting the switch to
UP or DOWN direction.
2. Select the mode you would like to operate by adjusting the switch to LEFT or RIGHT
direction. The more the level of gain increases, the brighter the screen and the level of
noise increases as well.
Ö HIGH: The gain increases from 6dB up to 42dB.
Ö MIDDLE: The gain increases from 6dB up to 30dB.
Ö LOW: The gain increases from 6dB up to 18dB.
Ö OFF: The gain is fixed at 6dB.
SETUP
LENS DC <┘
SHUTTER ___
WHITE BAL. ATW
> BACKLIGHT OFF
AGC MIDDLE
DNR LOW
SENS-UP AUTO <┘
SPECIAL <┘
EXIT
SETUP
LENS DC <┘
SHUTTER ___
WHITE BAL. ATW
BACKLIGHT OFF
> AGC MIDDLE
DNR LOW
SENS-UP AUTO <┘
SPECIAL <┘
EXIT