8x18 mm monocular high definition general use kids toys cellphone bak4 multi coated normal zoom binoculars
Structuresmonocular eye relief mm16 magnification8 objective lens mm18 field range 7 typezoom binoculars normal materialmetal rubber plastic eye lensmm13 lens diametercm12 20mm prism typebak4 exit pupil diameter mm3mm magnification5x to 99x eye relief range mm20mm exit pupil diameter range mm3 4mm objective diameter
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