bak4 20x50 binoculars for astronomy

{"cid":"91199509","title":"Adults Marine Military 20x50 Binoculars Waterproof With Rangefinder Compass BAK4 Prism FMC Lens","imgUrl":"https:\/\/img.chinax.com\/nimg\/b2\/76\/12c04ca27021feb5722db1a0b73d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Tontube","Model Number":"KBPC4R 7X50","Minimum Order Quantity":"1","Delivery Time":"10-12 days","Certification":"CE FCC ROHS","Place of Origin":"Sichuan, China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, ","Supply Ability":"1,000,000 pcs\/month","Packaging Details":"- Waterproof Binocular - Carrying bag - Cleaning Cloth - Neck Strap - Operational manual - Eyecups for eyepiece and objective lens - Tripod and phone holder (charge optional) - Gift cards (charge optional)","Product name":"High Power Military Binoculars","Magnification":"7X Optical Magnification","Objective diameter":"50mm","Field of view":"132m","Eye Relief":"23mm","Coating":"FMC","Eyecup Type":"Rubber fold-down eyecup","Waterproof Rain-proof":"IPX7","Near Focus":"7 m","Prism Material":"BAK4","FIELD ANGLE":"7.5\u00b0 \u00b1 5%"}}

{"cid":"91223841","title":"12x50 Rugged Low Light Binoculars High Definition Night Vision IPX7","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/60\/3274152e8c0247eb47c8123f69fe-200x200-1.jpg","attrs":{"Price":"100-50000\uff08CNY\uff09","Brand Name":"","Minimum Order Quantity":"1","Delivery Time":"Spot goods: 3-7 days Customized\/imported products: 15-60 days","Price Term":"EXW price","Special Features":"thermal camera","Advance":"Compact, light","Pan":"360 degree auto tracking","Country of Origin":"China","Brand":"EV","Packaging Details":"Carton","Payment Terms":"T\/T","Supply Ability":"In stock","Place of Origin":""}}