AmScope PM240T Trinocular Stereo Microscope with 80X Magnification and LED Light Source on a Track Stand

SKU: PM240T

Availability: In Stock

$4,171.99 $4,116.99

Key Features

  • Large 8X-80X continuous zoom magnification range with standard 10X focusable eyepieces.
  • High-resolution Common Main Objective (CMO) stereo microscope for laboratory use
  • Infinity-corrected optics and parallel light-paths eliminate keystone distortion
  • Large 10:1 zoom ratio using 0.8X-8X continuous-zoom optics
  • Transmitted and reflected LED illumination for biological and industrial applications
  • Includes an inline phot-port module with a 23mm tube for use with reduction lenses

Our PM240 line of stereo microscopes takes advantage of the common-main-objective (CMO) optical design. Different from the more traditional models which use the Greenough design characterized by tilted objective lenses, CMO microscopes use a single objective lens which focuses light into two parallel optical paths. This results in some major advantages which include the removal of keystone distortion, and the ability to introduce intermediary optical systems without loss of image integrity. The modular design of the PM series allows for multiple configurations in which components can be added or replaced.

Standard Viewing Head

The standard viewing head keeps things simple. Elongated ocular tubes are mounted at a 20° angle, and allow viewing from a comfortable distance. Alignment with the eyes is done by using a sliding interpupillary adjuster. The tubes lack integrated diopters, so dioptric adjustments can be made by using focusable eyepieces when needed.


Optics

The zoom module provides a large 10:1 zoom range covering magnifications from 0.8X-8X. When used with the standard 1X objective and 10X eyepieces, the microscope produces images with stunning clarity at 8X-80X total magnification.

Magnifications and Working-Distances
Objective
Eyepiece Standard (78mm WD)
10X 8X-80X

Infinity Optics

This microscope uses an infinity-corrected optical system which allows for a modular design in which accessories can be added without affecting magnification or image quality. Such accessories include photo ports and coaxial illumination systems.


Keystoning

By using a single objective lens and parallel optical paths, the CMO design avoids a type of distortion seen in other stereo microscopes called the keystone effect. Tilted objective lenses cause the independent images to be distorted in a manner where one side is larger than the other. This also causes gradual changes in focus and reduced depth-of-field. CMO microscopes do not suffer from this distortion, allowing for improved resolution and depth.


Dedicated Photo Port

This model includes an inline photo-port module which can be installed between the viewing head and zoom module. This adds a dedicated port for attaching a camera, avoiding the need to use one of the ocular tubes. The side-arm-style port uses a 23mm tube to accommodate a wide range of cameras with reduction lenses. When the port is switched open, it shares light with the viewing head, allowing use of all ports simultaneously. Closing the port allows all light to be passed through to the eyepieces for maximum brightness.


Support and Illumination

The dual-illumination stand provides a turnkey solution for biological and industrial applications. LEDs are used for the overhead and sub-stage light-sources, providing bright, low-heat illumination. Reflected and transmitted illumination allows for a wide gamut of specimens to be viewed. The track-style stand uses rack-and-pinion movement and large, coaxial coarse/fine control-knobs for precisely adjusting focus. The stage uses large 100mm circular plates for placing specimens. A transparent glass plate is included for use with the sub-stage transmitted illumination, allowing for a range of biological or other translucent specimens. A reversible black-white plate can be used when transmitted light is not needed, providing two options for enhancing specimen-contrast.


Specifications

Microscope Head
Head Type Trinocular, 20° incline, 360° rotatable
Optical System CMO stereoscopic
Interpupillary Adjustment Sliding
Ocular-port Diameter 30mm
Dioptric Adjustment none (use focusable eyepieces)
Eyepieces 10X
Photo Port 23.2mm tube
Objective Lens 1X
Zoom Module 0.8X-8X continuous zoom
Native Field-of-View (10X Eyepieces) 2.75mm-27.5mm
Native Working Distance 78mm
Stand
Stand Type Track stand with integrated top and bottom illumination
Reflected Illumination LED
Transmitted Illumination LED
Stage Illumination Plate Diameter 100mm
Power 100-240VAC 50Hz/60Hz auto-switching wide-band
Dimensions 37cm X 24cm x 50cm

Packing List:

  • One viewing head
  • One zoom module
  • One 1X objective lens
  • One photo port module
  • One pair 10X eyepieces
  • One track stand
  • One power cord for top-light
  • One glass stage plate
  • One black/white stage plate
  • One power cord
  • One hex wrench
  • One dust cover