1. Objectives: Grouped From Any Three Objectives of 1X,2X,3X and 4X 2. Wide Field Plane-Scope Eyepiece: WF10X,WF15X(Optional) 3. Articulated Binocular Head,Interpupillary Distance: 55-75mm,45º Inclined 4. Natural Light For Illuminating Gathered By Ø60mm Black-white Reversible Stage Plate 5. Rack and Pinion Coarse Focusing Mechanism With Slip Clutch and Tension Adjustment |