Camera settings
12.5 Main Tab “Camera”
Under the tab <Camera>, there are submenus including: <Exposure>, <White
Balance>,
<Picture
Adjustm
ent>,
<
Backlight>,
<Digital
Zoom
>,
<IR
Function
>,
<WDR Function>, <Noise Reduction> and <TV System>.
12.5.1 Exposure
The Exposure setting can be found under this path: Camera> Exposure.
Exposure is the amount of light received by the image sensor. It is determined by
the width of lens diaphragm opening, the shutter speed and other exposure pa-
rameters. With these items, users can define how the Auto Exposure function
works. Users can select one of the exposure modes according to the operating
environment. Click on <√> to confirm the new setting.
Each exposure mode is specified as follows.
Auto Mode
Max Gain
Maximum Gain can be set to reduce image noises. The Max Gain range is 1dB to
3dB, or select <Off> to disable the function. The default setting is 3dB.
Auto Shutter Mode
In this mode, the camera will automatically adjust the shutter speed and the iris
size according to the light intensity. It is also effective if a fixed iris lens is being
used. The minimum shutter speed range is configurable from 1/500 to 1 sec.
(NTSC) or 1/425 to 1/1.5 sec. (PAL).
Shutter Priority Mode
In this mode, it is the shutter speed that takes the main control of the exposure.
The range is configurable from 1/500 to 1/30 sec. (NTSC) or 1/425 or 1/25 sec.
(PAL).
NOTE: This mode is not available for Fixed Focal Lens Models.
Manual Mode
With this mode, users can select the suitable shutter speed, iris size and gain val-
ue according to the environmental illumination. The shutter speed range is from
1/10000 to 1 sec. (NTSC) or from 1/10000 to 1/1.5 sec. (PAL). The range of the
iris size is from 0 to 9, or selects <Full open> to fully open the iris. The gain value
range is from 1dB to 9dB, or select <Off> to disable the function.
NOTE: The <Iris Size> setting is only available for models with 3x Zoom Lens.
NOTE: The <Gain> setting is not available for Box Camera.
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