Objective：Grouped From Any Three Objectives of 1X，2X，3X and 4X，Working Distance：1X-55mm，2X-81mm，3X-61mm，4X-57mm
Wide Field Plane-Scope Eyepiece：WF10X，（Optional： WF15X ，WF20X）
Articulated Free Binocular Head，Interpupillary Distance：55-75mm，45º Inclined；
IIllumination：Top/ Bottom Light,Lamp Optional Halogen Lamp 6V/20W ，incandescent lamp， LED Lamp with Rechargeable Deceive
