Bosma BOSMA 10X42 binoculars through the water fog / Outdoors

Through the series Description: face the journey of the many dangerous and barrier, are you ready? Bosma BOSMA through binoculars series, has a more excellent optical performance, the use BAK4 prism, the field angle, pupil distance long, bring you more comfortable, a perfect viewing experience. Equipped with the world's most compact compass, compact and durable. Small size, light weight, waterproof, is your outdoor tourism, hunting indispensable good partner! Bosma telescope through the series, with you through the way of thorns, crossing the road dangerous, embrace the more realistic the magnificent nature! Technical data Magnification: 10X diameter (mm): 42 Prism System: Paul Focusing system: the transfer Field ft / 1000yds: 314 close focus distance (m): 5.0 Exit Pupil Diameter (mm): 4.2 Exit pupil distance (mm ): 17.5 Prism Material: BAK4 Waterproof Fog: Yes Coating: FMC- Green Product Description Features: Optical performance, image is clear and bright pupil distance long, convenient and comfortable use BAK4 prism watch, brighter field of view field angle, field of vision more spacious compact, durable, ideal for outdoor tourism, hunting with small size, light weight, easy to carry with a waterproof compass products for the world's most compact telescope with a compass reticle products Ranging easier