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  Designed for examination of distant objects in theatres and concert halls. The glasses are produced with various colour cases and may have the magnification from 2.3 to 4 times. The glasses with magnification 2.5 times ensure clear image of the distant objects from 1 meter to infinity and with magnification 4 times - from 2 meters to infinity. Opera glasses have central focusing system.

   BGN 2,5х24

BGN 2.5x24

Magnification, times: 2.5
Field of view, degrees.: 12.7
Lens light diameter, mm: 24
Limit of resolution, ang. sec: 15
Dimensions, mm: 100x66x45
Mass, kg: 0.14

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   BGF2 2,5х25

BGF2 2.5x25

Magnification, times: 2.5
Field of view, degrees.: 11.7
Lens light diameter, mm: 25
Limit of resolution, ang. sec: 15
Dimensions, mm: 105x32x55
Mass, kg: 0.17

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   BGF2 4х36

BGF2 4x36

Magnification, times: 4
Field of view, degrees.: 7
Lens light diameter, mm: 36
Limit of resolution, ang. sec: 10
Dimensions, mm: 115x42x69
Mass, kg: 0.3

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2007