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second-gear zoom stereo microscope 2X-4X zoom stereo binocular microscope/optical lens/lab instrument
feature:
drawtube:45degree inclined,360degree rotatable of binocular,interpupilary distance:55-75mm,diopter of view field adjustable scope is +/-5
eyepiece use high eyepoint wide angle eyepiece.let the user not fatigue ,
light source of visual field: varity of floodlight system,built in halogen and outlay ring form of fluorescent lamp ,led lamp
focus arm:focus knob adjustable ,lift range 49mm
