AmScope PM240T-5MA Digital Trinocular Common Main Objective Stereo Zoom Microscope, WH10x Eyepieces, 8X-80X Magnification, 0.8X-8X Zoom Objective, Pillar Stand, 100V-240V, Includes 5MP Camera with Reduction Lens and Software

  • List Price: $3,194.96
  • Sale Price: $3,194.96
  • Availability: Usually ships in 1-2 business days


  • Digital professional stereo microscope with boom stand has long working distance to enable users to perform work or manipulate large items, including gem and jewelry applications, and a 5MP camera with reduction lens and USB 2.0 output for capturing or displaying images on a computer or projector
  • Trinocular viewing head with pair of 10x extreme-widefield eyepieces, adjustable interpupillary distance, fixed 20-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing
  • 0.8x-8x zoom objective provides continuous zoom magnification and longer focal length for inspecting large-scale specimens
  • Rheostat-controlled upper and lower LED light provides intensity control and bright, cool light for working with temperature-sensitive or live specimens, frosted stage plate allows light to pass through from below with transparent specimens, and reversible black and white stage plate provides contrast with light- and dark-colored specimens
  • Track-style table stand with bilateral coarse focus and fine, and stage clips to secure the specimen during viewing

Product Description

The AmScope PM240T-5MA digital common main objective (CMO) trinocular stereo zoom microscope has a pair of 10x extreme-widefield eyepieces, a 0.8x-8x zoom objective, and track stand. The 5MP camera has a CMOS color sensor, a reduction lens, image capture and editing software, and USB 2.0 output to capture or display still or video images on a computer or projector. The common main objective (CMO) has an infinity optical system that provides higher resolution and increased light-gathering capability over traditional optics. The microscope has an overall magnification range of 8x-80x. The trinocular viewing head has an adjustable interpupillary distance, a 20-degree inclination to reduce eye and neck strain, and 360-degree rotation to enable sharing. The trinocular port can be used as a C-Mount or 23mm photo port. The WF10x22mm extreme-widefield eyepieces combine with the 0.8x-8x 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 digital 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, and is used where image capture, detailed records, or documentation is required.

The 5MP digital camera has a CMOS color sensor for displaying still microscopy images and streaming live videos to a computer or projector. The camera has 40x magnification and a built-in 0.5x reduction lens that ensures that the display has a similar field of view as the microscope eyepiece. The camera can be mounted in a C/CS-Mount or any 23mm eye tube. The camera includes image capture and editing software that provides still image and live video capture and editing. Measurement functions including length, area, and angle. The software supports JPEG, BMP, TIFF and RAW, and is compatible with Windows (32- and 64-bit XP, Vista, 7, and 8), and Mac OS X (32-bit). Camera drivers are compatible with Windows (XP, Vista, 7, and 8), Mac OS X, and Linux. The camera has a USB 2.0 data port (cable included).

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. The upper LED ring light provides shadow-free illumination, and can be removed to provide access to the objectives. 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. Both lights have a rheostat to control the amount of light emanating from the lamp. The pillar-style stand has bilateral coarse focus and fine to ease use for left- and right-handed users. All metal construction is durable and the enamel finish is stain-resistant. The microscope is 19-1/2 x 9-1/2 x 14-3/8 inches/50 x 24 x 37mm (H x W x D, where H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back), and has a 110V-240V auto-detecting power supply.

Microscope Specifications
Objective power
Trinocular portC-Mount or 23mm
Eyepieces (30mm)WH10x22mm
Field of view2-26mm
Optical working distance3-1/16" (78mm)
Microscope standTrack
Illumination typeEpiscopic (reflected) and diascopic (transmitted)
Light sourceLED

Camera Specifications
Resolution5MP (2592 x 1944 effective pixels)
Image typeStill image and video display and capture
Camera typeBrightfield
Camera sensor1/2.5" Color CMOS (Micron)
Magnification40x (20x with reduction lens)
Reduction lens0.5x (built-in)
Mounting size23mm or C/CS-Mount
Frame rate30 fps at 640 x 480; 8 fps at 2592 x 1944
Computer connectionUSB 2.0
File formatsJPG, BMP, TIF and RAW
Software packageImage capture and editing for Windows XP, Vista, 7, and 8 (32 & 64bit); and MAC OS X (32-bit)
Camera driver compatibilityWindows XP, Vista, 7, and 8; Mac OS X; and Linux

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?

  • PM240T-5MA stereo zoom microscope with 0.8x-8x zoom objective
  • WF10x22mm eyepieces
  • 5MP digital camera with built-in reduction lens (MT500)
  • USB 2.0 cable
  • Software CD
  • Frosted glass plate, round
  • White stage plate
  • Eye guards, one pair
  • Stage clips, one pair
  • Power adapter/charger
  • Dust cover
  • Instructions

Product Detail

  • ASIN: B0091MHXAS
  • Item model number: PM240T-5MA
  • Average Customer Review: Customer Reviews

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