This OMAX binocular biological compound microscope offers four magnifications between 40X and 1000X. The lab microscope comes with a 45° inclined 360° swiveling binocular sliding viewing head, two pairs of widefield eyepieces with adjustable diopter on oculars, four achromatic objectives, stain-resistant double layer mechanical stage with scales, coarse & fine focusing on both sides, NA 1.25 Abbe condenser with iris diaphragm and variable intensity LED transmitted illumination system. This type of microscope is perfect for home school, teaching, demonstration, clinical examination, laboratories and advanced applications. It is easy to mount an electronic eyepiece (digital microscope camera) for capturing images and live video on computer. It can also be added a darkfield condenser to switch a brightfield microscope to a darkfield microscope. Features: Binocular viewing head with sliding adjustable interpupillary distance A pair of eyepieces WF10X and four achromatic objectives DIN 4X, 10X, 40X(S), 100X(S,Oil) NA1.25 Abbe condenser with iris diaphragm & filters Coaxial coarse & fine focus knobs on both sides Variable LED intensity transmitted illumination Specifications: Model: M82E Total magnification: 40X-100X-400X-1000X Eyepieces: widefield WF10X Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil) Viewing head: 45°Inclined 360°swiveling binocular Interpupillary distance: sliding adjustable 2-3/16" ~ 2-15/16"(55~75mm) Diopter: adjustable on both ocular eyetubes Nosepiece: revolving quadruple Stage: double layer X-Y mechanical stage with scales, size: 4-1/2"x 4-15/16" (115mm x 125mm), translation range: 2-13/16" x 1-3/16" (70mm x 30mm) Stage upward moving lock protects objectives and slides Condenser: NA1.25 Abbe condenser with iris diaphragm Illumination: transmitted (lower) LED light, intensity adjustable Focus: Coaxial coarse & fine knobs on both sides Full solid metal frame construction with stain resistant enamel finish Power supply: AC/DC adapter, 100V-240V (UL approved) Dimension: 9-1/16" x 7-1/8" x 13" (23cm x 18cm x 33cm) Net weight: 7 lb (3.2 kg) Package weight: 9 lb (4 kg) Packing List: Binocular microscope 4 DIN objectives 4X, 10X, 40X, 100X A pair of eyepieces WF10X A bottle of Immersion oil AC adapter (US and Canada standard) Dust cover Color filter