This high power compound microscope provides both darkfield and brightfield optics. It is designed for professional applications in clinical offices and research laboratories. This microscope comes with a 30° inclined 360° swiveling binocular compensation-free head 3-D mechanical stage coaxial coarse fine focusing system intensity-variable halogen illumination and darkfield and brightfield condensers. It gives eight level magnifications: 40X-80X-100X-200X-400X-800X-1000X-2000X. It is a right instrument for clinical or research applications that need both phase contrast and bright field features. Features : A Great Affordable Brightfield and Darkfield System Darkfield and Brightfield Condensers Included 30° Inclined 360° Swiveling Compensation-Free Binocular Head Large 3-D Double Layer Mechanical Stage with Stain Resistant Finish Low Position Coaxial Stage Movement Control Knobs Coaxial Coarse Fine Focusing with CA Knob Tension Control Fully Coated Optical System with High Resolution Crystal Clear Sharp Images High Quality Professional Grade Microscope Perfect for Clinics Vets Doctors and Medical School Students Eight Settings of Magnification: 40X-80X-100X-200X-400X-800X-1000X-2000X Upward Stage Stopper to Protect Slides and Objectives Abbe Condenser with Iris Diaphragm Filters Rack and Pinion Adjustment for Condensers Darkfield Dry Condenser Built-in Halogen Illumination System with Variable Intensity Focusing Control Knobs on Both Sides. Four DIN Achromatic Objectives Included Two Sets of Eyepiece Included Full Optical Glass Elements Precise Ground Glass Lenses All Metal Mechanical Parts Adjustable Interpupillary Distance Adjustable Diopters on Both Oculars Full Solid Metal Frame Construction with Stain Resistant Enamel Finish Spare Bulb Fuse and Immersion Oil Included Manufactured under Restrict ISO 9001 Quality Control Standards Excellent Five (5) Year Factory Warranty Unbeatable Low Price Guaranteed or Difference Back! Satisfaction Guaranteed or Your Money Back! Specifications : Nosepiece: quadruple Mechanical Tube Length: 6-5/16 (160mm) Head: binocular anti-mould viewing head inclined at 30 degree Wide-Field Eyepiece: WF10X and WF20X Full Coated Achromatic Objective: 4X 10X 40X (spring) 100X (spring oil) Stage Dimension: 5-1/2 x 5-1/2 (140x140mm) Stage Traveling Range: 2-15/16 x 1-3/4 (75x45mm) Focusing Range: 1-3/16 (30mm) Division of Fine Focusing: 0.0000787 (0.002mm) Abbe Condenser: NA=1.25 with rack and pinion focusing control Darkfield Condenser: dry (NA 0.7-0.8) Illumination: 6V/20W halogen bulb Power Supply: 110V (220V version available) CE certified Accessories: 6V/20W spare halogen bulb immersion oil Dimensions: 12 x 9 x 16 Packing List : One Binocular Compensation-Free Head One Microscope Body with Frame and Base Four High Quality DIN Objectives 4X 10X 40X and 100X One Pair of Widefield 10X Eyepieces One Pair of Widefield 20X Eyepieces One Dry Darkfield Condenser One 6V/20W Spare Halogen Bulb Two Color Filters Two Spare Fuses One Power Cord One Dust Cover Immersion Oil User s Manual Shipping Weight: 20 lbs