Loading ...
Loading ...
Loading ...
VIVOTEK
72 - User's Manual
Focus
Focus here refers to the Remote Focus, applicable to Network Cameras that are equipped
with a stepping motor lens. The automated focus adjustment function eliminates the needs
to physically adjust camera focus. In an outdoor deployment consisting of a large number of
cameras, the auto focus function can be very helpful when these cameras become out of focus
after days or weeks of operation. And that can easily result from the effects of natural forces,
e.g., shrink and expand due to a wide range of operating temperatures and the vibration caused
by wind.
Below is the procedure to perform the automated Focus function:
1. Select from the bottom of the screen whether you want to perform focus adjustment on the
Full view or within a Custom focus window. You can create a custom window and click and
drag the window to a desired position on screen.
2. It is recommended to Reset to the default back focus position of the sensor board.
3. You can use the Fully-opened iris checkbox (default) to increase the iris size for a better
focus adjustment result.
4. Click to select the Fully-opened iris or the Full-range scan buttons. When a full-range scan
is selected, a full-range scan through the camera's entire focal length can take about 30 to 80
seconds. If not, the auto focus scan will only go through the length where optimal focus may
occur, and that takes about 15 to 20 seconds. In theory, best results of the auto scan can be
acquired when the camera's iris is fully open.
Focus window
x
Loading ...
Loading ...
Loading ...