17
Adjust focal length of your lens to zoom in or out surveillance images; adjust optical afterfocus of
your lens to improve clarity level of video images.
Click
, and the zooming and focusing interface is displayed at the right side of live interface.
Select the visible channel and you can zoom, focus and change the aperture.
Select the thermal channel and you can zoom and focus.
Table 3-4
Zoom and focus description
Parameters
Description
Variable focal
length
Click
or
, and adjust the optical back focal length of thermal tunnel
to make images more clear.
Auto focus
Auto focus.
3.1.3.4
Optical Axis Calibration
Used only for calibrating the Camera lens when the Camera is being debugged in the factory. You do
not need to operate this function.
3.1.3.5
Real-time Reports
Within the set time, record the average temperature of the presets, lines and area that you have
selected.
Only Cameras with temperature-measuring function support this function, and the actual product
shall prevail.
Preparation
You have set the temperature measuring rules. For detailed operation, see "4.6.1.1 Configuring
Temperature Measuring Rules."
Procedure
Click
and the real-time reports interface is displayed. Select the temperature-measuring
program and set the time circle. Then the real-time temperature change is displayed. See Figure 3-6.
