The Seiler Westlab III Compound Microscope includes dust cover, blue filter, immersion oil, spare bulb, and BGX 1-20 Fuse. Warranty: Limited Lifetime - Free from Defects in Materials and Workmanship. The Westlab III is an economically priced routine microscope offering all the standard features of higher-priced scopes. Specifications Seiler Westlab III Compound Microscope Specifications Semi-Plan Achromat Objectives: 4x, 10x, 40x, and 100x Oil. Seidentopf Binocular Head: 30° Inclined, 360° Rotation. Eyepiece: Wide-Field 10X (20 mm FOV). Interpupillary Distance: 50 - 75 mm. Condenser: Abbe Type N.A. = 1.25 with Iris Diaphragm. 12 V / 20 W halogen illumination. Ball-bearing reversed quadruple click-stop nosepiece. Coaxial coarse and calibrated fine focus control. Graduated mechanical stage with removable slide holder 142 mm x 140 mm (travel area with a right-hand stage handle). Anti-fungal system. 100 - 240 V universal power supply. Configurations Seiler Westlab III Compound Microscope Configurations #WLB814: Standard. #WLB814-DV: With Dual View. #WLB819: With Video. Literature Seiler Westlab III Compound Microscope Literature Seiler Medical Products Catalog Seiler Westlab III Compound Microscope Spec Sheet Seiler Westlab III Compound Microscope User's Manual