Installation guide

DVTel CF-4221-00 Fixed IP Camera User & Installation Guide
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d.) If the image is not focused (sharp), loosen the back focus ring’s retaining screw with
the supplied hex tool (if not already loose) and rotate the lens mount to adjust the back
focus as needed to achieve a sharp in-focus picture.
e.) Zoom out to wide-angle position (for close FOV) and attempt to focus on a close object
(eg. 1-3m.). If clear focus can be achieved, go to step 3.).
f.) Repeat steps a. - e. until focus is optimal throughout the zoom range.
g.) Tighten the back focus ring’s retaining screw to secure the ring in place.
3.) Return the camera’s Exposure Setting to Auto Iris if this was temporarily changed to
Auto-shutter mode during focusing.