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Chapter 3: Installtion
Adjusting the Varifocal Lens of NC450
The NC450 camera comes with a varifocal lens inside the housing (as opposed to the built-in fixed lens of the
NC420). If you like to adjust its focus and zoom, follow the steps below.
Step 1 - Power off the camera and detach the sunshield by loosening the top screws.
Figure 3-4. Detaching sunshield
Step 2 - Remove the lens cover at the front by turning it counterclockwise. Then turn the zoom ring on knob 1,
and the focus ring on knob 2. Then re-install the lens cover.
1
2
Figure 3-5. Adjusting zoom and focus
Adjusting the Varifocal Lens of NC450
3-3
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