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OPTICAL AND<br />
OPTICAL-ELECTRONIC DEVICES<br />
ROCKET ARTILLERY WEAPONS AND MUNITIONS<br />
OP1, OP4, OP4M<br />
DIRECT OPTICAL SIGHT<br />
‘OP4’, ‘OP4M’ are designed for aiming the barrel of a field artillery cannon, which inflicts<br />
direct fire against fixed and mobile targets. The sight is installed on various types of field<br />
artillery cannons; the distance scales of the sight meet the ballistic data of the firing cannon.<br />
Main Specifications:<br />
OP1 OP4 OP4M<br />
Zooming, rate from 3.15 to 3.85 5.5 from 5.25 to 6.0<br />
Viewing field not less than 12.5 grades not less than 11 grades not less than 10.5 grades<br />
Distance of exit pupil from the outer<br />
surface of eyepiece’s last lens<br />
not less than 22 mm not less than 22 mm not less than 22 mm<br />
Border of resolution in the center not more than 15‘’ not more than 8‘’ not more than 8‘’<br />
Parallax between the image of infinitely<br />
distant object and the aiming reticule’s flat<br />
not more than 2 not more than 1 not more than 1<br />
Parallax between the aiming reticule’s flat<br />
and the thread<br />
not more than 2 not more than 2 not more than 2<br />
Light transmission not less than 50% not less than 50% not less than 50%<br />
Limit of the diopter setup of eyepiece from -0.5 to +1.5 diopter from -0.5 to +1.5 diopter from -0.5 to +1.5 diopter<br />
Weight not more than 2.1 kg not more than 5.1 kg not more than 5.1 kg<br />
Overall dimensions not more than 362×78×110 mm not more than 333х173х198 mm not more than 333х173х198 mm<br />
PZU-7, PZU-7M<br />
ANTI-AIRCRAFT SIGHTS<br />
‘PZU-7’ and ‘PZU-7M’ anti-aircraft sights are designed for direct aiming<br />
when shooting from the tank anti-aircraft system. The sights are monocular,<br />
periscopic with rotating prism, with electric heating and illuminated<br />
eyepiece’s aiming reticle.<br />
Main Specifications:<br />
Zooming of the sighting device<br />
1.2 rate<br />
Distance of exit pupil from the outer surface of eyepiece’s last lens<br />
23 mm<br />
Resolution border in the central third of the optical system’s viewing field not more than 60<br />
Visual transmission coefficient not less than 0.2<br />
Periscope line-of-sight height of the device<br />
220 mm<br />
Diopter alignment of the eyepiece<br />
from - 4 to + 4 diopter<br />
Range of angle of sight<br />
-10 o ...+85 o<br />
Horizontal travel of the aiming reticle from zero mark<br />
±(00-25) t.d.<br />
Guaranteed life<br />
not less than 500 hours<br />
Power supply voltage<br />
27 V<br />
Viewing field of the sighting device<br />
50<br />
Exit pupil diameter:<br />
5 mm<br />
Weight:<br />
not more than 11 kg<br />
Overall dimensions:<br />
415x325x195<br />
230
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