48 Checker 4G Quick Start Guide Checker 4G Quick Start Guide 49
Adjusting Focus
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Adjust focus using the clear ring on Checker. Using the supplied 2.5 mm hex key, you can lock the focus
adjustment by tightening the focus lock. The lens cover both seals the front of Checker and lets you
adjust the lens focus.
1 Locking nut secures lens to
lens cover.
2 Large O-ring seals lens
cover to Checker housing.
3 Lens cover rotates lens,
adjusting focus.
1 Closer
2 More distant
3 Focus lock
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