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   Viewing devices: PNB-3
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This binocular was originally designed for detecting of targets by anti-aircraft batteries, fire correction, and determining the angular deflection of the explosions of anti-aircraft shells or tracer ammunition. The instrument consists of a 10x80mm binocular augmented by a 8x commander's monocular. The eyepieces of the binocular are inclined 60 degrees relative to the optical axis of the objective lenses; the light path of the monocular diverted is by 90 degrees. The wide-angle eyepieces feature comfortable eye relief and diopter adjustments for eyeglass wearers. A sturdy tripod with leveling adjustments is provided, as well as sets of internal interchangeable filters: blue-green to protect the observer's eyes against laser radiation; light orange to increase contrast under hazy or foggy conditions, and neutral density for observing under brilliant daytime conditions. The reticle and scales are illuminated for low-light observations.

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Standard Specification

Clear aperture, mm

80

Magnification

10

Field of view, deg

7

Eye relief, mm

17

Exit pupil diameter, mm

8

Limiting resolution, arc. sec

5

Diopter adjustment, diopter

±5

Range of motion in azimuth, deg

360°

Range of motion in elevation, deg

-18° +84°

Angular measurement accuracy, mil

0-02

Scale division, mil

0-10

Overall dimensions of the device, mm

396x423x438

Weight of the device, kg

16.5

Weight of tripod, kg

6.5

 
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