• Professional stereo micro with pillar stand has long working distance to enable users to perform work or manipulate large items, including circuit boards and dental appliances.
• Binocular 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, a 05.x Barlow lens extends the working distance, and a 2.0x Barlow lens extends the magnification range.
• Fiber-optic ring light with 150W cool-light halogen light source for observing temperature-sensitive specimens, and a rheostat controls light intensity.
• Large pillar-style table stand has reversible black and white stage plate to provide contrast with light- and dark-colored specimens, and large stage clips to secure the specimen during viewing.

The Am SM-1BZ-FOR professional stereo zoom micro has a pair of 10x super-widefield high eyepoint eyepieces, a 0.7x-4.5x zoom objective, two Barlow lenses, and a pillar stand. The micro has an overall magnification range of 3.5x-90x. 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 WH10x20mm super-widefield high-eyepoint eyepieces combine with the 0.7x-4.5x zoom objective to provide 7x-45x continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. High-eyepoint objectives ease viewing for users who wear glasses, and dioptric adjustment accommodates individual eye-strength differences. The micro includes 0.5x and 2.0x Barlow lenses that can be added to the objective to increase the magnification range. A Barlow lens with a magnification of less than 1.0 reduces magnification and increases the working distance, while a Barlow lens with a magnification greater than 1.0 increases the magnification and reduces the working distance. A stereo micro, sometimes called an inspection or dissection micro, has low magnification and a long working distance that enables users to manipulate the object being inspected. The fiber-optic ring light has a 150W/21V cool-light halogen light source for observing temperature-sensitive specimens. The ring light provides shadow-free illumination, and a rheostat controls the a of light emanating from the lamp. The ring light has a 2-1/8" (56mm) inner diameter, a 3-1/8" (80mm) outer diameter, and a 35" (890mm) metal-sheathed light cable. Power and adjustment controls are located on a control box to speed adjustments. The light source has a forced-air cooling system to prevent overheating, and a built-in filter slot can be used to change the light color (filters sold separately). The top-ed door eases access to the bulb, and automatically turns off the power supply when opened. The light uses a 110V power supply. The pillar-style stand secures the head for precise focusing. Bilateral coarse focus eases use for left- and right-handed users. The extra-large table stand has a reversible black and white stage plate that provides contrast with light and dark-colored specimens, and stage clips to secure the specimen in place. The stage plate has a 3-3/4" diameter (95mm). Specifications Head Binocular Magnification range 3.5x-90x overall magnification range Zoom objective power 0.7x-4.5x Eyepieces (DIN, 30mm) WH10x20mm high-eyepoint Zoom range 26:1 Field of view range 3/16 to 1-1/4" Optical working distance Up to 8" Micro stand Pillar stand Head movement X-axis Illumination type Episcopic (reflected) Light source Fiber-optic, 150W/21V halogen Power 110V-240V Micros are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound micros use a compound optical system with an objective lens and an eyepiece. Stereo micros show object depth in a three-dimensional image. Digital micros are used to display an image on a monitor, rather than looking through a lens. Micros 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. Micros 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. Micros are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. United manufactures microscopy equipment and accessories under the brand name Am. The company, founded in 1996, is headquartered in Irvine, CA. What's in the Box? ------------------ * Am SM-1BZ-FOR stereo zoom micro with pillar stand * WH10x20mm eyepieces, 30mm, one pair * 0.7x-4.5x zoom objective * 0.5x Barlow lens * 2.0x Barlow lens * Fiber-optic ring light (HL250-AR) * Focus rack * Eye guards, one pair * Stage clips, one pair * Dust cover