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38 C2953M-B (10/09)
CONFIGURING AUTO FOCUS SETTINGS
Figure 24. Auto Focus Page
1. Place your mouse pointer over the Imaging tab.
2. Select Focus from the drop-down menu.
3. Select the Auto mode.
4. Set the Temperature Change Refocus setting. The camera is programmed to run a quick automatic focus sequence when the internal
temperature sensor of the camera detects an environmental temperature change of 41°F (5°C). This focus sequence adjusts the center
focal point of the scene to maintain optimal focus. The default setting is On; select Off to turn off this setting.
5. Day/night cameras only: Set the Day/Night Switch Refocus setting. 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.
When enabled (On) this setting refocuses the camera when the camera changes from day mode (color) to night mode (black-white) or vice
versa. For example, if the camera changes from day mode to night mode, the imager automatically adjusts the back focus for the change in
light.
6. If required, use one of the following buttons to adjust the focus:
Full Range Auto-Focus: The camera starts a full-range search to find the optimal focal point for the scene.
Quick Auto-Focus: The camera searches for the optimal focal point in a limited range.
Factory Defaults: The camera resets the auto focus to the factory default setting.