Operation Manual

7.2 Testing of operation,

Mount NS-156 on your weapon as follows:

- Put your night sight “weaver” slide into the mating part of

the mount assembly so that at least one of the fixing screws fits into

the hole on the slide. Tighten the fixing screws; - install your NS-156

with mount assembly on the weapon mount. Turn on your NS-156 by

rotating switch (9) clockwise. A click will be heard. Normal

operation will show a greenish screen. After turning the unit “on”,

rotate the same switch to illuminate the reticule on the screen. In the

dark take off protective lens cover. Operation without the lens cover

on is admissible only at the illumination level of no more than 1 lux

(late twilight and darker). Turning eyepiece (3) obtain the most clear-

cut image of the screen (the reticule).

Turning lens (2) obtain a sharp image of the objects to be viewed.

After operation switch off NS-156. Secure the lens with the

protective lens cover.

7.3 Operation at insufficient ambient light

At insufficient ambient light use the infrared illuminator. Slide it into

socket (8). Sliding it all the way in creates contact and turns it on.

7.4 Adjusting the reticule.

Rotate the adjustment knobs (11) to move the reticule Up (U), Down

(D), Right (R) or Left (L). Each click corresponds to 3mm at 100m:

or 0.12”at 100 yards. Full rotation of the knob corresponds to 0.93m

at 100m; or 33.48” at 100 yards.

4. SPECIFICATIONS OF NS-156

Magnification, X 3.0±0.5

Field of View. Degrees, not less 10°

Resolution (center), angl. second, not more 100

Dioptric Compensation, Dptr., not less ± 4

Focusing range, m 2-∞

Eye Relief, mm 50

Focal length of lens, mm F 85/1.5

Lens connection thread, mm 42x1

Focal Length of Eye-piece, mm 16.8

Power supply 3V, 2 AA

Battery life, hours 10

Dimensions, mm 290×91×73

Weight, kg 1.1

NOTE: As the design is being continuously improved some

descriptions may differ from those given above.

5. SAFETY INSTRUCTIONS

• NS-156 is a safe product. However, normal safety procedures

must be utilized like with regular daytime riflescope.