Model PX43MET Inverted Microscope Optical System Color Corrected Infinity Optical System (CCIS) Observation Tube 360° swivel range, height difference 40mm Interpupillary Distance Adjustment range: 48mm to 75mm Eyepieces UC-WF 10X/FN22 Trinocular Light Path 20:80 Nosepiece Quintuple Revolving Nosepiece Objectives Plan S-Apo BD 5X;Plan S-Apo BD 10X;Plan S-Apo BD 20X;LPlan S-Apo BD 50X Stage Size (mm) Size:320(W) X 194(L) mm,Stroke:50 X 50mm Focus Course/Fine Focus Knob,Course 42mm/ revolution,Fine 0.2mm/ revolution,0.002mm/ marks Transmitted Light Reflected Light 100W Light House RL100.00 Electronics 115 / 230V~,60 / 50Hz Halogen Light :12V / 100W DIC Optional Analyzer Optional Polarizer Optional