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To adjust the zoom factor and focus range
1.Loosen the zoom controller, then adjust the zoom factor by moving the controller left and right. Upon completion, tighten the zoom controller.
2.Loosen the focus controller, then adjust the focus range by moving the controller left and right. Upon completion, tighten the focus controller.
Loosen 
Tighten
W
N 
T
8
DO NOT over tighten the controllers. Doing so will damage the camera lens module.
Note
If you are using FD7141V (f= 9~22 mm), please hold the supplied plastic cover in front of the lens while adjusting the focus controller as shown below.
axis of the lens
Completion
Attach the dome cover to camera. Secure the three dome screws with a screwdriver. Finally, make sure all parts of the camera are securely installed.
User's Manual - 15
