telescope,binoculars,telescopio,jumelles,binocolo,teleskop,binoculares,monoculars,monocular telescope,telescop,telescoop,telescopios astronomicos,monokular,night vision binoculars,telescopio monocular,binoculares professional,telescopios,monocular night vision,visionking,telescopes,binocoli,nachtsicht fernglas,telescope night vision,binoculars waterproof,verrekijkers nachtkijkers,binoculo noturno,lunette astronomique,fernglas,telescope monocular,teleskope,spyglass,visionking telescope,datyson,16×52 monocular,pocket telescope,mini binoculars,zoom telescope,verrekijkers,jumelle vision,ottiche grandangolare,binoculars monocular,zoom telescope black,binocolo zoom,prismaticos de dia y noche,jumelles night vision,jumelle vision nocturne,mini telescope,télescope,jumelle monocular,binocolo monocular,jumelles bak4,bak4 binoculars BOSTRON 10X50 Binoculars HD Rangefinder Compass Waterproof Nitrogen Telescope Telescopio Binocolo Teleskop Eyepiece Focus Bak4 Brand: BOSTRON Magnification: 10x Objective lens diameter: 50mm Eyepiece diameter: 23mm Prism Material: BAK4 Exit pupil diameter: 7.1 mm Field of View: 396FT / 1000YDS Size: 20×14.7x 6.7cm Weight: 960 g Resolution: 5.6 ° Exit pupil distance: 23.0 Focus mode: binocular focusing Coating: FMC broadband coating Waterproof fog: yes Accessories: binoculars, backpacks, shoulder strap, lens cover, eyepiece cover, instructions, cleaning cloth Frequently Asked Questions for binoculars: 1. How many meters can I see when use binoculars? When use binoculars, the distance is depend on the target size,weather. Sometimes in good weather , you can see around 2000 meters. 2.How about the image definition ? The image definition also relate to the target size. Under good weather, you can see the coin on road around 80 meters , see the license number clearly around 300 meters. see the word on the billboard around 1000meters. 3.Can I see the target in the evening ? Does it have night vision ? Telescope is pure optical instruments . it can not be used under the environment of all black .it is LLL night vision . its characterized to observe the target clearly by using external faint light . for example: Lighting, concert lighting, street lamp, moonlight, starlight 4.Will it damage while shipping ? Here we check each binoculars before shipping ,to assure each are in good quality , and we will put the air bubble film to protect it . so please trust us . you will receive what you like ! 5. Why I feel dizzy when use it ? The reasons are as follows: 1) Most cases are round right eye diopter didn’t adjust good, lead to imaging blurring. 2) An exit pupil distance have not adjusted well. eyes are too close to the eyepiece or are too far away from the eyepiece 3) First time to use it cannot adapt to the telescope magnification. And looking at moving target frequently or hand shake. Suggest to observe after a period of time .