Microscope LY-300D-1600X Eyepiece Tube: Three eyepieces, 30º inclined, Interpupillary: 55-75mm Eyepiece: Wide-angle eye lens WF10X Flat field: P16X Objectives: 4X 10X 40X(S) 100X(S) Working Stage: Double Layer Mechanical Stage 140mmX140mm Coaxial Coarse and Fine AdjustmentCoaxialfour hole converter Condenser: NA1.25abe Condenser with Changeable Diaphragm, Liiumination: 6V/20W Halogen Lamp, Brightness can be adjusted.