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Super Waterproof Lightweight BAK4 Zoom Compact Binoculars for Adults/Kids,10x42 High Power Long Distance Binoculars for Hunting Bird Watching Opera Travel Theater Stargazing Telescope vinoculares
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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
About Super Waterproof Lightweight BAK4 Zoom Compact
Other sellers have much review, so we must provide better product and service, only this, it is possible for us to win in the competition How to judge binoculars are good or not? 1.What is the difference between nitrogen waterproof and non-nitrogen waterproof? Nitrogen waterproof have a sealing ring on the eyepiece and objective and the barrel is filled with dry nitrogen,a concave lens is added between eyepiece and objective, when adjusting the focus, eyepiece and objective are not moved, the focus is adjusted by adjusting concave lens, so sealing is good, chemical reaction is slow. Non-nitrogen waterproof can be focused by adjusting the position of eyepiece or objective,the sealing is not good. So only nitrogen waterproof can really waterproof,anti-mold，anti-fog, our binoculars is nitrogen waterproof. 2.Prism and film are good or not? In terms of light transmittance, BK7 prism < BAK4 prism, decorative film < blue film < green film. Because of the high cost of BAK4 prism and green film, low-price binoculars are unlikely to be equipped. Our binoculars use BAK4 prism, FMC multilayer green film, view is clearer and brighter 3.Why do binoculars have small field of view and uncomfortable use? Eyepiece diameter is the most key factor affect the field of view.If want large field of view, eyepiece diameter must be greater than 20MM, if not，field of view is small and will be dizzy. If exit-pupil distance is less than 15MM, it's uncomfortable to use. Our eyepiece diameter is 21MM, exit-pupil distance distance is 17MM. Package: binoculars*1, smartphone adapter*1, carrying bag*1, eyepiece cover*1, objective cover*1, cleaning cloth*1, straps*1
