Newcon Optik NVS-33 operation manual Installation on a Rifle, Installation with thread usage

5. INSTALLATION ON A RIFLE

5.1.Installation with thread usage

Your NVS-33 matches to the inner thread M52x0.75 of the objective lens of those daytime riflescopes that can accept daytime filters. If your scope does not match this thread, use mechanical adapters that transform M52 into M54, M55 or M48 threads. M52 adapter is used to increase the depth of the thread in case if the scope objective lens is close to the edge of the scope.

Mount your night vision attachment as follows:

If necessary, screw the corresponding threaded adapter in the thread on the adapter ring (2) (Fig.1).

Loose the retention pin (4) by turning it counters clockwise.

Turn the adapter ring (2) counter clockwise and screw it into the inner thread of the daytime riflescope until stop. Avoid applying extra strength while tightening.

1.Turn the night vision attachment NVS-33 so that the objective focus adjustment knob (7) is located on top

2.Lock the attachment in this position by turning the fixating ring (3) in the counter clockwise direction.

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