Ningbo Barride Optics Co., Ltd.  

Product Name: 7X50 Outdoor Long Distance Binoculars (BM-5109A) Model NO.: BM-5109A Aperture: <50mm Focusing Type: Center Focusing Objective Aperture: >50mm Lens: Glass Lens Type: Prime Lens Usage: Gift, Travel Function: Waterproof, Wide Angle Magnification: 7X Type: Binocular Trademark: OEM Transport Package: Color Box Origin: China Product Description 7X50 Outdoor Long Distance Binoculars (BM-5109A)Magnification7Objective diameter(mm)50mmPrism TypePorro/BAK4Number of Lens5 pcs/3groupsLens CoatingFMCAngle of View7°Field of View122m/1000m,367ft/1000ydsExit Pupil Diameter(mm)7mmEye Relief(mm)24.35mmRelative Brightness49Twilight Index49.49Interpupillary Distance54mm-73mmResolution≤4"Near Focus5mall weatherYesshockproof and waterpoofYesNitrogen filledYesEyecup systemfold downProduction Dimension180x192X63mmproduct weight1090g