AmScope SM35180B Binocular Stereo Microscope Head with 180X Magnification

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This is a 3.5X-180X zoom magnification binocular stereo microscope head. It includes two Barlow lenses (0.5X and 2.0X), two pairs of super widefield high-eyepoint eyepieces (10X an d 20X) and a pair of foldable eyeguards. It comes with 45-degree inclined 30mm eyetubes with diopter. The microscope provides sharp clear erect stereo images over a large zoom magnification range. Its super widefield optics and high-eyepoint design ensure an easy and comfortable observation. This microscope head fits stands with a 3" (76mm in diameter) collar. Features: 3.5X to 180X Expanded Zoom Magnification Power 45-degree Inclined Binocular Head with SUPER WIDEFIELD High-Eyepoint Eyepieces 30mm Super Widefield WF10X/20 Eyepieces High Resolution with Great Flatness and Contrast Sharp Stereo Erect Images over a Wide Field View Crystal Clear Original True Color Images Both Ocular-Tubes with Adjustable Diopter Large Working Distance 4" (100mm) Accurate Alignment Ensuring a Fatigue-Free Viewing Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Adjustable Interpupillary Distance Rubber Eyeguards Included Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Manufacturer Warranty Specifications Microscope Head Head Type Binocular Optical System Greenough stereoscopic Ocular Incline 45° Interpupillary Adjustment Compensation-free gemel, 54-76mm Ocular-port Diameter 30mm Dioptric Adjustment Both oculars, ±5dp Eyepieces 10X FN20mm wide-field, high-eyepoint20X wide-field Objective Lenses 0.7X-4.5X zoom Objective Numerical Aperture 0.065 @ 4.5X0.02 @ 0.7X Objective Resolution 195 lp/mm @ 4.5X60 lp/mm @ 0.7X Field-of-View (10X Eyepieces) 4.4mm-28.6mm Working Distance 4" (100mm) Auxiliary Lens Mount 48mm Collar Mounting Size 76mm (3") 2.0X Barlow Lens Modifier 2.0X Objective Resolution 390 lp/mm @ 9X Objective Magnification Range 1.4X-9X Working Distance 4" (100mm) Field-of-View (10X Eyepieces) 2.2mm-14.3mm 0.5X Barlow Lens Modifier 0.5X Objective Magnification Range 0.35X-2.25X Working Distance 4" (100mm) Field-of-View (10X Eyepieces) 8.9mm-57mm Magnification Chart Eyepiece Objective Standard 0.5X Barlow 2.0X Barlow 10X 7X-45X 3.5X-22.5X 14X-90X 20X 14X-90X 7X-45X 28X-180X Packing List: One Binocular Stereo Zoom Head One Pair of Super Widefield 10X Eyepieces One Pair of Super Widefield 20X Eyepieces One 0.5X Barlow Lens One 2.0X Barlow Lens One Pair of Foldable Eye-Guards Show more