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8*21 Double Tube

We have 10 times high-definition binoculars, 40mm large aperture objective lens, high power large aperture, wide viewing angle, multilayer broadband coating, bak4 prism.

NameParameter
Magnification8*
Prism systemRoof prism
Focusing methodMiddle tone
Optical coatingGreen film objective lens, blue film objective lens
Close focus distance5m
Exit pupil distance9.5mm
Objective lens diameter22mm
Eyepiece diameter13.20mm
Prism materialBK7
Field of view7.5°
Field of view131m*1000m
waterproof levelLife waterproof
net weightAbout 180g
size105mm*30mm*93mm


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