TechVision DVR-LT04120 User Manual page 97

7.2.2.3 Zoom/Focus/Iris
Here is a sheet for you reference.
Name
Zoom
Focus
Iris
Then click triangle icon in Figure 7-10, you can see the following interface. See
Figure 7-11.
In Figure 7-11, click PTZ setup button you can see the following interface. See
Figure 7-12.
Function Function
key
Near
Near
close
Figure 7-11
Function Function
key
Far
Far
Open
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