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Omax Trinocular Lab Microscope w/ Koehler LED Illumination

SKU: MQ8333

Omax Trinocular Lab Microscope w/ Koehler LED Illumination-Jacobs Digital
Omax Trinocular Lab Microscope w/ Koehler LED Illumination-Jacobs Digital

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About this product

Key Features

  • 40X to 1000X magnification range using high-quality, color-coded objective lenses, and 10X eyepieces for four unique settings ideal for viewing cellular structures and microorganisms.
  • The MQ8333 is an upgraded version of our M8333 laboratory microscope, with 30mm oculars for a larger field of view, a five-port lens turret, and Koehler illumination.
  • The infinity-corrected optical system reduces distortion and improves color accuracy. Five plan-achromatic objective lenses producing high-contrast images with edge-to-edge sharpness.
  • The Koehler illumination system provides centered, evenly-distributed lighting with a field aperture for maximum contrast and definition.

The MQ8333 is designed to be a scalable and economical laboratory microscope. This model is adorned with professional features. Its infinity-corrected optical system ensures reliable, low-distortion magnification, with plan-achromatic corrections for accurate colors, excellent field flatness and edge-to-edge sharpness. A quintuple lens-turret is used, providing five levels of magnification. The Koehler-design LED illumination system provides bright, evenly-distributed light for maximum contrast and definition. A large set of optional upgrades are available for phase-contrast and darkfield, making this microscope perfect for scaling laboratories and advanced education.

Viewing Head

The microscope's head is designed for precision and comfort. The super-widefield optics provide a larger field-of-view so you can see more specimen at any magnification. Compensation-free Siedentopf interpupillary adjustment allows any user to properly align the oculars without readjusting focus. For users with astigmatism or asymmetrical vision, both eyepieces can be independently adjusted to fine-tune focus. The switched trinocular port provides a dedicated mount for a camera to record photos or videos, and is height-adjustable to match focus with the eyepieces. The port uses 23mm tube interface which can be replaced with an optional C-mount interface.


The quintuple objective turret provides quick access to 5 magnification levels to easily focus in on minute details from 40X to 1000X. This covers magnifications needed for studying hair follicles, cells, soil, and bacteria. The turret's reversed orientation provides more working room above the stage. These high-quality lenses are achromatically corrected to improve resolution and color accuracy, with planatic flat-field correction to provide edge-to-edge sharpness.

Objective Lenses

Magnification Corrections NA Immersion Medium Cover-glass Thickness
4X plan-achromatic 0.10
10X plan-achromatic 0.25 0.17mm
20X plan-achromatic 0.40 0.17mm
40X plan-achromatic 0.65 0.17mm
100X plan-achromatic 1.25 oil 0.17mm

Specimen Stage

The 2-layer mechanical stage provides smooth and precise movement for examination of specimen slides. The stage's low-position controls are conveniently placed near the coaxial focus knobs for a streamlined workflow. Examining specimen slides is intuitive and precise for users at any skill level. A convenient lever grouped with the left-side focus knobs can be used to lock and unlock the coarse focus adjustment to prevent damage to the lenses and specimen.

LED Koehler Illumination

Built on Koehler illumination principals, the sub-stage lighting provides evenly-distributed light for optimal contrast. The LED light-source ensures energy-efficient illumination with low heat for live specimens. The bright light-source is daylight-balanced to produce natural colors for imaging. The Abbe light condenser has a high 1.25 numerical aperture for oil-immersion, and an iris diaphragm to optimize contrast and depth-of-field. The condenser holder uses rack-and-pinion height adjustment for precision control, and is centerable for proper alignment. The illuminator's field lens provides an iris diaphragm to control light-spread, optimizing contrast and definition in specimen features.

Packing List:


  • One trinocular head
  • One photo tube
  • One microscope body
  • Five objective lenses: 4X, 10X, 20X, 40X, 100X
  • One pair 10X eyepieces
  • One power cord (US and Canada standard)
  • One dust cover
  • One sample immersion oil

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