Magnification : 20x to 70x (field of view : 10mm to 2.8mm)
Objective Lenses : 2.0x to 7.0x (zoom ratio : 3.5:1)
Eyepieces : Wide Field 10x (DSW10x), Field Number 23
Optical Body : 360 degrees rotatable binocular type, 45 degrees inclined eyepiece tubes
Working Distance : 80mm.
Interpupillary Distance : 52mm to 75mm
Diopter Adjustment : +/- 7.2D on both eyepiece tubes