Microscope Features : 45Degree monocular head with 360 Degree Revolution High quality precise optical glass elements four magnifications, 40X, 100X, 400X, & 1000X Four DBSeries-Achromatic objectives, 4X, 10X, 40X(S), 100X(S,Oil) (60-80% flat field objective series) Two pairs of widefield eyepieces: WF10X Adjustable interpupillary distance Adjustable ocular diopter Variable intensity illumination Coaxial coarse and fine focus adjustment Focusing knobs are on both sides of the microscope Stain-resistant double layer mechanical stage NA1.25 Abbe Condenser with iris diaphragm & filters Rack and pinion adjustment condenser Manufactured under ISO 9001 Quality Control Standard Specifications : Eyepieces: widefield, WF10X Objectives: DBSeries-Achromatic objectives, 4X, 10X, 40X(S), 100X(S,Oil) (60-80% flat field objective series) Head: 45 degree inclined 360 degree swiveling binocular Interpupillary distance:(55mm - 75mm) Adjustable ocular diopter Nosepiece: revolving quadruple Mechanical Stage: double layer Condenser: NA1.25 Abbe condenser with iris diaphragm Illumination: led light, transmitted, intensity adjustable, Focusing: coaxial coarse & fine knobs on both sides Power Supply: 100-240VAC, 50/60Hz, Packing List : One monocular Microscope Head One Microscope Body Frame with One Layer Mechanical Stage and led Illumination Four DB Series-Achromatic objectives, 4X, 10X, 40X(S), 100X(S,Oil) (60-80% flat field objective series) One Pair of Widefield 10X Eyepieces One Dust Cover User's Microscope Manual