Features & Specifications 30 degree inclined 360 degree swiveling Siedentopf binocular headHigh quality precise optical glass elementsFive magnification settings, 40X, 100X, 250X, 400X, 1000X & 2500XAdjustable interpupillary distanceAdjustable ocular diopterVariable intensity illumination AmScope B120C-E1 40X-2500X LED Biological Binocular Compound Microscope with 3D Double Layer Mechanical Stage +1.3MP USB Digital Camera Imager AmScope B120C-E1 binocular compound microscope with 1.3MP USB camera is designed for teaching demonstrations, clinical examinations and laboratory applications. It is a perfect microscope for a range of people from professionals, students in high school to teachers including those with a major in biology, or enrolled in medical school. It comes with a professional Siedentopf binocular head, double layer mechanical stage, course & fine focusing, LED illumination, and a 1.3MP USB digital camera. The Digital Camera: The 1.3MP digital camera captures still images, streams live videos on your computer screen and is compatible with Windows XP/Vista/7/8, Mac OS X, and Linux. The user-friendly editing and processing software for Windows offers advanced features including Stitching, EDF (Extended Depth of Focus), Video Recording and Measurement functions. Live video and image capture can be set in different resolutions simultaneously. You can edit and process image captures in a manner similar to PhotoShop. What's in the Box? Siedentopf Binocular Microscope Head, Microscope Body Frame with Double Layer Mechanical Stage Four Achromatic objectives, DIN 4X, 10X, 40X(S), 100X(S,Oil) Two pairs of widefield eyepieces: WF10X and WF25X Blue Color Filter, Dust Cover, Sample Immersion Oil, User's Microscope Manual 1.3MP USB 2.0 Digital Camera, 1.8m USB Cable, CD with Software, Driver and User's Instructions Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. AmScope has been manufacturing microscopy equipment and accessories since 1996, headquartering in Irvine, CA.There are five magnification settings: 40X, 100X, 250X, 400X, 1000X & 2500X. This microscope is an ideal instrument for bacterial, biological, and pharmaceutical researches. More Specifications: Coaxial coarse and fine focus adjustmentStage upward moving lock protects objectives and slidesStain-resistant double layer mechanical stageNA1.25 Abbe Condenser with iris diaphragm & filtersRack and pinion adjustment condenserEyepieces: widefield, WF10X and WF25XObjectives: Achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil)Head: 30 degree inclined 360 degree swiveling binocularInterpupillary distance: 2-1/8 inch - 3-1/8 inch (53mm - 77mm)Adjustable ocular diopterNosepiece: revolving quadrupleMechanical Stage: 3-D double layerSize: 4-5/8 inch x 5 inch (118mm x 127mm)- Travel Range (X-Y): 2-13/16 inch x 1-3/16 inch (70mm x 30mm)Condenser: NA1.25 Abbe condenser with iris diaphragmIllumination: LED light, transmitted, intensity adjustable, GS and CE.Focusing: coaxial coarse & fine knobs on both sidesPower Supply: 100-240VAC, 50/60Hz, AC/DC adapter IncludedDimension: 11inch x 7 inch x 13-3/4 inch (280mm x 178mm x 350mm)