This monocular compound microscope offers polarizing and brightfield features. It comes with a 45 degree inclined 360 degree swiveling monocular head, coarse fine focusing, built-in illumination system, and a polarizing kit. It is a standard brightfield compound microscope without putting on the polarizing kit. It offers six polarizing and six brightfield magnifications settings (40X, 100X, 250X, 400X, 1000X, and 2500X). It is a right microscope for both brightfield and polarizing applications. Features : A great polarizing and brightfield microscope 45 Degree Inclined 360 Degree Swiveling Monocular Head Large Plain Stage with Clips and Stain Resistant Finish Separate Coarse Fine Focusing Fully Coated Optical System with High Resolution Crystal Clear Sharp Images High Quality Student Microscope Perfect for Up to High School Students Six Levels of Magnification: 40X-100X-250X-400X-1000X-2500X Upward Stage Stopper to Protect Slides and Objectives Built-In Illumination System Abbe condenser with iris diaphragm filter holder Focusing Control Knobs on Both Sides Four DIN Achromatic Objectives Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Rugged Metal Frame with Stain Resistant Enamel Finish Two Eyepieces Included Polarizing with Round Stage and Lens Kit included Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Factory Warranty Specifications : Nosepiece: quadruple Head: 45 degree inclined monocular Wide-field Eyepiece: WF10X Wide-field Eyepiece: WF25X Achromatic Objectives: 4X, 10X, 40X (spring), 100X (oil, spring) Stage Dimensions: 4-3/8" x 4-3/4" (110x120mm) Abbe Condenser: NA=1.25 with iris diaphragm filter Focusing Control: rack pinion Illumination: tungsten lamp, 115V/20W Accessories: dust cover and a bottle of immersion oil Microscope Dimensions: 7-1/2" x 5-1/8" x 15-0" Packing List : Four Achromatic DIN Objectives, 4X, 10X, 40X and 100X One Widefield Eyepiece, WF10X One Widefield Eyepiece, WF25X One Polarizing Kit with Round Stage and Lens One Wrench for Tension Adjustment Two Color Filters One Spare Bulb One Dust Cover Immersion Oil User's Manual Download Shipping Weight: 10 lbs For ages 10+