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AmScope T490B 40X-2000X Professional Trinocular Lab Education Biological Compound Microscope with 3D Two-Layer Mechanical Stage From Manufacture: AmScopeT490B features a unique simul-focal optical system with an adjustable trinocular port to enable well-focused clear images on your computer or video screen while simultaneously obtaining sharp, focused images through the eyepieces. In addition, the T490B’s industry standard 23mm photo port can be converted into a C-Mount port by attaching the included C-mount adapter, allowing you to attach most microscope digital cameras and video systems on the market. The T490B includes a 30-degree inclined 360-degree swiveling trinocular Siedentopf head, a 3-D mechanical stage, and an intensity-variable halogen illumination system. This versatile microscope is also capable of being upgraded with various accessories and attachments listed in the optional section for additional functions. It is a perfect laboratory instrument for clinics, Vets, Doctors, and professional students. It arrives brand new in a factory sealed box. Simul-focal Optical System Most trinocular microscopes allow you to view either through the trinocular port or the eyepieces only, forcing you to switch between the two. Since these trinocular ports are not simul-focal with the rest of the microscope optical system, you have to re-focus the microscope after each switch. The T490B, however, erases this step by providing simul-focal viewing. Especially handy for teaching demonstrations, clinical examinations and laboratory applications, the simul-focal feature allows your students or colleagues to view clear images simultaneously while you work through the eyepieces. What’s In The Box? Trinocular Simul-focal Microscope, Siedentopf Head, 23mm Adjustable, Trinocular Photo Port with C-Mount Adapter, Microscope Body with Frame, Base and Halogen Illumination System, DIN Objectives, 4X, 10X, 40X and 100X, Widefield 10X Eyepieces (Pair), Widefield 20X Eyepieces (Pair), Color Filters, 6V/20W Spare Halogen Bulb, Spare Fuse, Power Cord, Dust Cover, Immersion Oil, Customer Information Sheet (download link included). About Microscopes Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. 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. Features & Specifications Simul-focal optical system allows simultaneous viewing through the photo port and eyepieces Adjustable simul-focal trinocular port Industry standard 23mm photo port and c-mount port 30-degree inclined, 360-degree swiveling trinocular Siedentopf head Photo/video capability with adjustable 23mm photo mount for simul-focal image system Large 3D double layer mechanical stage with stain resistant finish Low-position coaxial stage movement control knobs Coaxial coarse & fine focusing with ca knob tension control Fully coated optical system with high resolution Eight magnification settings: 40x-80x-100x-200x-400x-800x-1000x-2000x Upward stage stopper to protect slides and objectives Abbe condenser with iris diaphragm & filters Rack and pinion adjustment for condenser Built-in halogen illumination system with variable intensity Dual focusing control knobs Full optical glass elements Precise ground glass lenses All metal mechanical components. Adjustable interpupillary distance Adjustable diopter on ocular Solid metal frame construction with stain resistant enamel finish CE and GS certified electrical system Nosepiece: quadruple Mechanical tube length: 6-5/16 inch (160mm) Head: 360-degree swiveling trinocular Siedentopf head inclined at 30-degree Eyepieces: wf10x and 20x Achromatic objectives: 4x, 10x, 40x (spring), 100x (spring, oil) Stage dimensions: 5-1/2 inch x 5-1/2 (140x140mm) Stage traveling range: 2-15/16 inch x 1-3/4 inch (75x45mm) Focusing range: 1-3/16 inch (30mm) Division of fine focusing: 0.0000787 inch (0.002mm) Abbe condenser: na=1.25 with rack and pinion focusing control Illumination: 6v/20w halogen bulb Power supply: 110v (220v version available), CE & GS certified Accessories: 6v/20w spare halogen bulb, bottle of immersion oil, blue, green & yellow filters Microscope dimensions: 12 inch x 9 inch x 16 inch Manufactured under ISO 9001 quality control standard Excellent five (5) year factory warranty Compare ProductsT490B ASIN:B004QEFO1QT340B-LED ASIN:B0069WNJS8T660B ASIN:B007RFJ4E4T650C ASIN:B00GGXZOQAT700D ASIN:B008ZH72VUAchromaticâââInfinity Plan AchromaticââLEDâ20W Halogenâââ30W HalogenâKohlerâââWidefieldââSuper/Extreme Widefieldâââ