This is a professional binocular microscope that provides both darkfield and brightfield optics. It comes with a sliding binocular head rack and pinion adjustment abbe condenser with iris diaphragm double layer mechanical stage and darkfield and brightfield condensers. This microscope is designed for teaching demonstration clinical examination and research purpose. It offers eight levels of magnification: 40X 64X 100X 160X 400X 640X 1000X and 1600X. This microscope is a perfect instrument for vets college students and those in clinic offices and biological labs. Features: Brightfield and darkfield microscopy system for vets labs clinics universities and high schools High quality professional optical glass elements 45 degree inclined 360 degree swiveling binocular head Eight (8) levels of magnification: 40x-64x-100x-160x-400x-640x-1000x-1600x Four (4) achromatic objectives DIN 4x 10x 40x(S) 100x(S Oil) Two (2) pairs of eyepieces: WF10X and P16X Large size 3-D double layer mechanical stage with stain resistant finish Low position coaxial stage movement controls Coaxial coarse fine focusing with CA knob tension control Sliding interpupillary distance adjustment Ocular diopter adjustable on both eyetubes Variable intensity halogen illumination High resolution images over a wide field of view Metal framework Coaxial coarse and fine focus adjustment Dual focusing knobs (on both sides) Stage upward moving lock protects objectives and slides Large stain-resistant double layer mechanical stage NA1.25 Abbe Condenser with iris diaphragm filters Rack and pinion adjustment condenser Product GS and CE approved Spare Bulb Fuse and Immersion Oil Included Manufactured under ISO 9001 Quality Control Standards Excellent Five (5) Year Factory Warranty Satisfaction Guaranteed or Money Back! Specifications: Head: 45 degree inclined 360 degree swiveling binocular Nosepiece: revolving quadruple Eyepieces: wide field WF10X and P16X Objective: Achromatic DIN 4x 10x 40x(S) 100x(S Oil) Total Magnification: 40x-64x-100x-160x-400x-640x-1000x-1600x Transmitted (lower) Illuminator: 6V/20W Halogen Stage: mechanical double layer size: 5-1/2 x 5-1/2 (140mm x 140mm) Stage X-Y Stroke (travel range): 3 x 2 (75mm x 50mm) Focus Adjustment: coaxial coarse fine knobs on both sides Focusing knob can be locked for observation transportation Condenser diaphragm: NA1.25 Abbe condenser with iris diaphragm Darkfield Condenser: Dry NA 0.7-0.8 Abbe condenser Power supply: 110V/220V built-in auto-switching power adapter Dimension: 11 x7-1/2 x 15-3/4 (28cm x 19cm x 40cm) Net Weight: 10 lbs (4.5kg) Package Weight 20 lbs Packing List: One Binocular Microscope with 4 DIN Objectives One Pair of Widefield 10X Eyepieces One Pair of P16X Eyepieces One Dry Darkfield Condenser One Bottle of Immersion Oil One Power Cord (US and Canada standard) One Mirror for Power Outage One Dust Cover Two Color Filters One Spare Halogen Bulb (6V/20W) One Spare Fuse