AmScope SH-2B Professional Binocular Stereo Zoom Microscope, WF10x Eyepieces, 10X-40X Magnification, 1X-4X Zoom Objective, Upper and Lower Halogen Lighting, 110V-120V

The AmScope SH-2B professional stereo zoom microscope has a pair of 10x widefield eyepieces, a 1x-4x zoom objective, and a pillar stand. The microscope has an overall magnification range of 10x-40x. The binocular 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 WF10x18mm widefield eyepieces combine with the 1x-4x zoom objective to provide continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. 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) illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. 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 10W 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, and stage clips to secure the specimen during viewing. All metal construction is durable and the enamel finish is stain-resistant.

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.

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 SH-2B stereo zoom microscope with pillar stand
• WF10x18mm eyepieces, 30.5mm, one pair
• 1x-4x zoom objective
• Focus rack
• Eye guards, one pair
• Instructions