AmScope SM-2TX-DK Professional Trinocular Stereo Zoom Microscope, WH10x Eyepieces, 3.5X-45X Magnification, 0.7X-4.5X Zoom Objective, Upper and Lower LED Lighting, Pillar Stand, 110V-120V, Includes Darkfield Condenser and 0.5X Barlow Lens

The AmScope SM-2TX-DK professional trinocular stereo zoom microscope has a pair of 10x super-widefield high-eyepoint eyepieces, a 0.7x-4.5x zoom objective, a 0.5x Barlow lens, a darkfield condenser, and a pillar stand. The microscope has an overall magnification range of 3.5x-45x. The trinocular viewing head has an interpupillary range of 55 to 75mm, a 45-degree inclination to reduce eye and neck strain, and 360-degree rotation to enable sharing. The vertical trinocular port can be used as a C-Mount or 23mm photo port (camera sold separately). The WH10x20mm super-widefield high-eyepoint eyepieces combine with the 0.7x-4.5x zoom objective to provide continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. The microscope comes with a 0.5x Barlow lens that can be added to the objective to decrease the magnification range. A Barlow lens with a magnification of less than 1.0 reduces magnification and increases the working distance. High-eyepoint eyepieces ease viewing for users who wear glasses, and dioptric adjustment accommodates individual eye-strength differences. A stereo microscope, sometimes called an inspection or dissection microscope, has low magnification and a long working distance that enables users to manipulate the object being inspected. The microscope has upper (episcopic) illumination that reflects light off the specimen for enhanced visibility of opaque specimens, and lower (diascopic) Brightfield/Darkfield (BF/DF) illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background, and Darkfield (DF) illumination reflects light off the specimen, resulting in a light image on a dark background. A frosted stage plate allows light to pass through from below with transparent specimens, a reversible black and white stage plate provides contrast with light- and dark-colored specimens, and stage clips secure the specimen during viewing. The 15W halogen light source provides bright light in a concentrated path. The pillar-style stand has bilateral coarse focus to ease use for left- and right-handed users. All metal construction is durable and the enamel finish is stain-resistant. SpecificationsHeadTrinocularMagnification range3.5x-45xZoom objective power0.7x-4.5xEyepieces (DIN, 30mm)WH10x20mm high-eyepointTrinocular portC-Mount or 23mmField of view2-1/2"Optical working distanceUp to 8"Microscope standPillar standHead movementX-axisIllumination typeEpiscopic (reflected) and diascopic (transmitted)Light sourceHalogen, 15WPower110V-120VMicroscopes 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.United Scope manufactures microscopy equipment and accessories under the brand name AmScope. The company, founded in 1996, is headquartered in Irvine, CA.What's in the Box?AmScope SM-2TX-DK stereo zoom microscope with pillar standWH10x20mm eyepieces, 30mm, one pair0.7x-4.5x zoom objective0.5x Barlow lensDarkfield condenser (DK-SI)Focus rackEye guards, one pairFrosted stage plateReversible stage plateStage clips, one pairSpare halogen bulbDust coverInstructions

• Professional stereo microscope with pillar stand has long working distance to enable users to perform work or manipulate large items, including circuit boards and dental appliances
• Trinocular viewing head with pair of 10x super-widefield eyepieces, adjustable interpupillary distance, fixed 45-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing
• 0.7x-4.5x zoom objective provides continuous zoom magnification and longer focal length for inspecting large-scale specimens, and a 0.5x Barlow lens extends the working distance
• Upper and lower illumination has 10W halogen light source illuminates specimens, frosted stage plate allows light to pass through from below with transparent specimens, reversible black and white stage plate provides contrast with light- and dark-colored specimens, and a Darkfield condenser reflects light off the specimen, resulting in a light image on a dark background
• Pillar-style table stand with bilateral coarse focus and stage clips to secure the specimen during viewing