Boshile 10x50 mm binoculars waterproof roof prism night vision bak4 fully multi coated range finder 132m1000m central focusing
Structuresbinoculars eye relief mm23 magnification10 objective lens mm50 field range 75 typerange finder materialmetal eye lensmm25 lens diametercm20 30mm batteryna prism typebak4 field of view132m1000m focus systemcentral focusing exit pupil diameter mm 71mm best useout door magnification10x to 149x eye relief range mm20mm exit pupil diameter range mm7mm objective diameter40 50mm field of view range300ft1000yds optical systeml
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