Operation Manual

Dahua 2 Inch PTZ Camera Web 3.0 Operation Manual
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Slow exposure
If the light may change greatly, you can use slow exposure to
get image so that the camera can get stable video.
Max Auto gain
It is to set camera max gain.
Slow shutter
In lower illumination environment, you can lower the cameras
auto exposure time to capture the image and enhance the
definition. For the moving object, the trail may appear. Please
note it is valid in auto mode.
Auto Slow
Shutter Min
value
It is to set camera min shutter value.
2D NR
It is to control noise. The higher the level is; the small the noise
is. Comparing with the previous one, the picture may become a
little bit blurry.
3D NR
It is to control noise. The higher the level is; the small the noise
is. Comparing with the previous one, there may appear some
smear phenomenon.
4.1.1.3 Backlight
The backlight interface is shown as in Figure 4-4.
Figure 4-4
Please refer to the following sheet for detailed information.
Parameter
Function
WDR Mode
For the environments of strong contrast effect, it can auto
adjust image contrast so that you can see the dark and bright
section at the same time.