OMAX 40X-2500X Trinocular Compound Siedentopf Microscope W/5MP

  • Model: M8311Z-C50U
  • Manufactured by: Omax



This is a professional grade trinocular microscope with 5MP high quality digital camera. It features reversed nosepiece, 3W LED bright illumination (brighter than 30W halogen light) and everything an advanced microscope have. It has the par-focal (also called simul-focal) function which means the image is focused through both eyepieces and the photo tube and no view switching is needed. The camera comes with advanced software that can make measurement of the samples and color, brightness, white balance and other settings are available. It can also take video clips for live samples through the fast USB2.0 port to share with others. This digital compound microscope is ideal for professionals and also affordable for students.



  • 5MP color digital camera with 0.5X reduction lens and 0.01mm calibration slide
  • Replaceable 3W LED transmitted light with adjustable intensity
  • 30 degree inclined 360 degree rotatable siedentopf trinocular viewing head
  • 4 achromatic objectives DIN 4X, 10X, 40X(spring), 100X(spring, oil)
  • Large double layer mechanical stage and coaxial coarse & fine focus knobs



  • Model: M8311Z-C50U
  • Total magnification: 40X-100X-250X-400X-1000X-2500X
  • Eyepieces: wide field WF10X/18 and WF25X
  • Objectives: achromatic DIN 4X, 10X, 40X (spring),100X (spring, oil)
  • Head: 30°Inclined 360°rotatable trinocular siedentopf
  • Interpupillary: hinge adjustment 1-7/8" ~ 2-15/16" (48mm ~ 75mm)
  • Diopter: adjustable on left eyepiece tube
  • Nosepiece: revolving, quadruple, reversed
  • Stage: X-Y mechanical stage with scales, range 3" x 1-9/16" (78mm x 40mm), dimension 5-1/2" x 4-1/4" (140mm x 110mm)
  • Focus: coaxial coarse and fine focus knobs on both sides, rack and pinion adjustment, with tension control and stop
  • Illumination: transmitted replaceable 3W LED light, intensity adjustable
  • Condenser: Abbe NA1.25 with iris aperture diaphragm and filter holder, rack & pinion adjustment
  • Solid metal base and stand
  • Power supply: AC 100V ~240V 50/60Hz (US and Canada plug)
  • Digital camera:
    - true color 
    2592x1944 pixels (5M pixels)
    - 0.5X reduction lens to get larger field of view

    0.01 mm calibration slide: 1mm/100 division
    Frame speed: 5fps at 2592x1944, 18fps at 1280x960, 60fps at 640x480
    - Software compatible with Windows, Mac OS X and Linux operating systems
    Capturing microscope images, recording live video, measuring lengths, angles, areas, editing images

    USB 2.0 cable included
  • Dimension: 12-3/16" x 8" x 19-11/16" (31cm x 20.3cm x 50cm)

Packing List:

  • One trinocular siedentopf microscope head
  • One photo tube for digital cameras
  • One microscope stand and base
  • Four objectives: 4X, 10X, 40X, and 100X
  • A pair of eyepieces WF10X
  • A pair of eyepieces WF25X
  • One bottle of immersion oil
  • One power cord (US and Canada standard)
  • One focus tension adjustment wrench
  • One dust cover
  • Color filter: green
  • Extra fuse (in the fuse holder of the microscope)
  • 5MP digital camera
  • 0.5X reduction lens
  • 1 CD including driver, software and user's instruction
  • 0.01mm calibration slide (stage micrometer)
  • USB cable

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