10x-80x Binocular Stereo Microscope TX20-C

binocular Stereo Microscope TX20-C Model:TX20-CFeatures:Objective: Grouped From Any Two Objectives of 1X, 2X, 3X and 4X, Working Distance: 90mm Wide Field Plane-Scope Eyepieces: WF10X, WF20X (Optional) Toatal Magnification: 10X-20X, or 10X-30X, or 10X-40X, or 20X-30X, or 20X-40X, or 30X-40X Articulated Free Binocular Head, Interpupillary Distance: 55-75mm, 45° Inclined, 360° Rotatable Rack and Pinion Coarse Focusing Adjustable Mechanism with Clip Clutch and Tension Adjustment Illumination: External Fluorescent Light Source Inner packing:Foamed plastic + inner cartonOuter packing:Net Weight/Set: 3.5kg Package: 2sets/Carton 48 X 30 X38cm Gross Weight/Carton: 9kg eyepiece:10x,15x,20x(you can choose any one) objective:1x,2x,3x,4x(you can choose any two objectives)