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29
6.6. Use in a dark time as a 2x night vision
monocular
Operation procedure:
1. Screw the optional М-540 optical monocular into
the eyepiece of the NVS-33 night vision
attachment.
2. Open the objective lens cover (9) (Fig.1).
3. Turn the switch (5) (Fig.1) of the device into ON
position. You should see a yellowish-green light
through the eyepiece of a daytime riflescope (the
device works in passive mode).
4. Choose the object of observation.
5. If necessary, turn on the IR-illuminator (5)
(Fig.2) (Special order only) as described above
(the device works in active mode).
6. Turn off the switch (5) (Fig.1) after work is over.
7. Close the objective lens cover.