This trinocular inverted metallurgical microscope offers four magnification settings, 50X, 100X, 200X and 500X. It comes with a trinocular microscope Siedentopf head, an inverted body frame, four Plan Achromatic objectives, a large mechanical stage and wide band voltage illumination system for both 110V and 220V power supplies. This microscope is perfect for metallurgical labs, foundries for silicon wafer inspection, and quality control applications. Features : A inverted metallurgical metallographic microscope with Plan optics Wide band power supply system from 90V to 240V Trinocular head for adding photo/video capability Fully coated optical system with high resolution Four DIN standard Plan objectives included One Pair of Plan widefield eyepiece included Intensity-variable LED illumination Large mechanical stage with stain resistant finish Coaxial coarse and fine focusing Focusing tension control mechanism Low position stage traveling controls Full optical glass elements Precise ground glass lenses All metal mechanical parts Dual side focusing controls Adjustable interpupillary distance Adjustable diopters on both eye tubes Solid metal frame construction with stain resistant enamel finish Dust cover included Manufactured under ISO 9001 quality control standards Excellent five (5) year factory warranty Specifications : Head: 45 degree inclined trinocular Nosepiece: quadruple Focusing Range: 1-5/16" (33mm) Interpupillary Adjustment Range: 2-3/16" - 3-0" (55 - 75mm) Mechanical Tube Length: 6-5/16" (160mm) Camera/Video Trinocular Port: 23mm universal/standard photo tube Eyepieces: WF10X (18mm Field of View) Objectives: Plan Achromatic 5X (0.1 NA), 10X (0.25 NA), 20X (0.40 NA), 50X (Spring, 0.65 NA) Stage Dimensions: 7-3/32"x 6-1/8" (180x155mm) Stage Traveling Range: 3-0"x 1-9/16" (75x40mm) Venire Division: 0.00004" (0.001mm) Illumination: 5W LED, 90V-240V wide band, CE certified Packing List : One Trinocular Microscope Siedentopf Head One Inverted Body Frame with Mechanical Stage and Illumination System One Pair of Plan 10X Widefield Eyepieces Four Plan Achromatic Metallurgical Objectives, 5X, 10X, 20X and 50X One Power Cord Dust Cover User's Manual Download Weight: 25 lbs