F.DORLA Roof Prism Binoculars for Adults, 10x42 HD Professional Binoculars for Bird Watching Outdoor Sports Waterproof Fog-Proof Compact Optics Telescope BAK4 Prism FMC Lens Strap/Carrying Bag

F.DORLA Roof Prism Binoculars for Adults, 10x42 HD Professional Binoculars for Bird Watching Outdoor Sports Waterproof Fog-Proof Compact Optics Telescope BAK4 Prism FMC Lens Strap/Carrying Bag Why do you choose F.DORLA Binoculars? ? 10x high power prism provides maximum HD image clarity. ? 42mm Fully muti-layer coatings green film objective wide lens provides bright and large field of view. ? BAK4 prism and FMC optical coating technology provides the brightness and color fidelity you need. ? Smooth right dioptre adjustment knob provides a clear vision even with different sight ability. ? Abrasion resistant & durable rubber armor with a unique non-slip design is easy to protect the binoculars and shockproof. Its tight fitting protection makes it usable to withstand the toughest weather conditions. Specifications: Magnification: 10x Object diameter: 42mm Eyepiece diameter: 23mm Prisms: BAK-4 Ocular coating: FMC -green Diameter of exit pupil: 21mm Distance of exit pupil: 15mm Interpupillary distance:56mm~74mm View of field: 94m/1000m(341ft/1000yds) Mini focus length: 2m Product size: 5.7"x4.9"x1.95"(14.5cm*12.5cm*5cm) Product weight: 1.55 lb(0.7kg) Material: Metal and natural rubber Water resistant and fog resistant: Yes Object lens: Fully optical glass lens Package Content 1x Binoculars 1x Carrying bag 1x Cleaning Cloth 1x Neck Straps 1x Manual Tips: 1. Don't look direct to the sun for avoiding eye hurts. 2. keep it dry for long time idle,clean it with dry cloth or alcohol.