Adjusting The Focal Length - Dahua Technology A21BC0V Quick Start Manual

4.2 Adjusting the Focal Length

Figure 4-3
1. Remove the two pan head screws and remove the panel from the underside of the camera.
2. Adjust the lens focus control until the scene is in focus.
3. Replace the lower cover and secure it to the camera with the two (2) pan head screws.
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