High Quality Porro Telescope Bak4 Optical Nitrogen Filled Waterproof 10x50 Binoculars for Adult

Bird watching telescope,Waterproor telescope,Hunting telescope,Big Porro telescope,Adult telescope,waterproof binoculars for adults,
10X50 binoculars
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1 pc(Min. Order)
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(100 In Stock)
Description
Description
Model型号 JAXY P2201 10X50f   
Magnification放大倍率 10x
Objective lens diametermm)物镜直径 50
Exit pupil diametermm)出瞳直径 5
Relative brightness相对亮度 25
Twilight factor黄昏指数 22.4
Eye relief 出瞳距离 19
Field of Viewdegree视场角 6.5°
          m/1000m 114
                 ft/1000yds 342
Close focusing distance  m)最近距离 5
Diopter compensation   dpt)屈光度 ±4
Interpupillary distance mm )眼点距离 53-74
Prism system棱镜系统 Porro
prism Material棱镜材质 Bak4
Focus system调焦系统 Center
Objective lens structure物镜结构 2 elements/1groups 1组两片
Eyepiece lens structure目镜结构 4elements/3groups34
Lens and prism coating玻璃镀膜 Fully multi-coated on all exposed lenses所有外露面全宽带镀膜
Eyecup type眼罩类型 Twist up with 3 click stops (Metal)旋转眼罩
Waterproof防水 Yes(Nitrogen filled)氮气填充
Adapt to tripod三脚架接口 Yes
 DimensionsHXWXD  mm)尺寸 175X200X65
Weight  g)重量 865