FOCUS
Use the Focus page to select either Auto back focus or Manual back focus, adjust the available settings, or reset the back focus to factory defaults.
NOTE: It is recommended to set focus to Manual when using analytics. If focus is set to Auto, significant background changes will occur when the camera
Auto Focus
Auto focus automatically back focuses the camera on the subject in the center of the scene. The camera will refocus when changes in the scene are detected.
Figure 24. Auto Focus Page
The available auto focus settings are as follows:
Periodic Refocus: The camera is programmed to run a quick auto focus sequence every three hours to maintain optimal focus. This periodic focus sequence adjusts the center focal point of the scene to compensate for small focus changes caused by environmental temperature, camera vibration, or other conditions. The default setting for Periodic Refocus is On. Select Off to turn off Periodic Refocus.
Day/Night Switch Refocus: Available only with day/night cameras. When enabled (On) this setting refocuses the camera when the camera changes from day mode (color) to night mode
The default setting for the Day/Night Switch Refocus is Off. Select On if the camera’s focal length is greater than ~25 mm, or the night scene uses mostly IR lighting. The best method to determine if the day/night refocus should be enabled is to test the camera with the daytime light conditions, and then test it again with the nighttime light conditions.
Full Range
Quick
Factory Defaults: The camera resets the auto focus to the factory default setting.
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