OMAX M837L Series LED Trinocular Compound Microscope 40X-2000X Magnification with Phase-Contrast Turret

SKU: M837SL-PHB3

Availability: In Stock

$848.99

The Higher the Magnification - The More Detail You'll See

Magnification can represent combinations of lenses including objective, ocular, and auxiliary lenses. The magnification ranges described here may include these combinations.

Compound Microscopes may include additional eyepieces (ocular lenses) to expand the total magnification range.

Stereo and other Inspection Microscopes may include additional eyepieces and auxiliary lenses including Barlow lenses to expand the total magnification range.

Camera Types

Various types of cameras are available. Cameras intended to be used with computers will use USB, wi-fi, or LAN to connect to the computer, and typically include specialized software. Cameras with HDMI, VGA, or analog video interfaces can be attached directly to a compatible display device such as a monitor or television, and do not require a computer to operate.

Camera Pixels

Also referred to as camera resolution, the number of pixels represents the maximum size of images which can be displayed or recorded by a camera. The value is displayed using MP (megapixels).

Key Features

  • 40X to 2000X magnification range using brightfield objective lenses, and 100X to 2000X magnification using achromatic phase-contrast objective lenses
  • Along with the standard brightfield lenses, this phase-contrast version of the M837L includes specialized achromatic objective lenses equipped with phase-rings, and a turret condenser with brightfield and phase-contrast settings.
  • The trinocular viewing head uses sliding interpupillary adjustment, and offers a dedicated phot port
  • Two-layer mechanical stage with caliper and coaxial X-Y controls, and symmetrical coarse and fine focus knobs provide precision adjustments with an ergonomic design for an efficient workflow
  • Built-in illumination uses an energy-efficient LED with brightness control, and an Abbe condenser with an iris diaphragm to improve contrast and depth

The M837L series compound microscope is a class leader offering professional features at an affordable price. The trinocular viewing head is customizable and is equipped with a dedicated photo port which works simultaneously with both eyepieces. This phase-contrast model includes a specialized turret condenser and objective lenses used to enhance details in low-contrast specimens such as live cells and microorganisms.

Viewing Head

The trinocular viewing head has a comfortable 45° incline for viewing while seated or standing, and can be swiveled 360°. Ocular spacing can be easily customized using sliding interpupillary adjustment. Dual diopters allow both eyepieces to be focused independently. The trinocular photo-port adds a dedicated mounting tube for cameras. The 23mm tube is height-adjustable to fine-tune the focus to match the eyepieces. Its simul-focal design allows simultaneous use with both eyepieces so no switching is necessary.

Optics

This model includes four brightfield objective lenses and four phase-contrast objective lenses. The brightfield lenses provide a magnification range from 40X to 1000X when used with the standard 10X eyepieces, while the phase-contrast lenses provide a 100X to 1000X range. Additional 20X eyepieces are included to expand the maximum magnification to 2000X.

Objective Lenses

Magnification Corrections NA Immersion Medium Cover-glass Thickness
Brightfield
4X achromatic 0.10 — 0.17mm
10X achromatic 0.25 — 0.17mm
40X achromatic 0.65 — 0.17mm
100X achromatic 1.25 oil 0.17mm
Phase Contrast
10X achromatic ph 0.25 — 0.17mm
20X achromatic ph 0.40 — 0.17mm
40X achromatic ph 0.65 — 0.17mm
100X achromatic ph 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 Illumination

The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors. 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.

A sub-stage mirror is included as an alternate light source when electricity is not available. The mirror can be mounted on top of the illuminator’s field lens to direct ambient light into the condenser.

Phase Contrast

A phase-contrast kit is included with a 5-position turret condenser and 4 achromatic phase-contrast objective lenses. Phase contrast is used to reveal detail in indistinct objects, such as unstained cells and microorganisms that would otherwise appear invisible. By using a combination of specialized objective lenses and a modified light condenser, these invisible objects can be visualized by manipulating variations in phase. This turret condenser allows you to easily rotate through the brightfield and four phase-contrast settings (10X, 20X, 40X, 100X). Each phase-contrast setting has a centerable annulus for proper alignment. Each of the phase-ring equipped objective lenses has achromatic corrections for improved color and resolution.

Packing List:

  • One trinocular microscope
  • Four objectives lenses: 4X, 10X, 40X, 100X
  • One pair 10X eyepieces
  • One pair 20X eyepieces
  • One mirror
  • One AC power cord
  • Sample immersion oil
  • One dust cover
  • One phase-contrast turret condenser
  • Four phase-contrast objective lenses: 10X, 20X, 40X, 100X
  • One telescopic centering eyepiece
  • One green filter
  • One screwdriver
  • One storage case for phase-contrast kit
    • Head Type Trinocular
    Illumination Type Transmitted
    Light Source LED
    Microscope Format Upright
    Objective Lenses 4X, 10X, 20X, 40X, 100X
    Ocular Diameter 23.2mm
    Optical Corrections Achromatic/Achromatic Ph
    Optical System Finite
    Power Compatibility 100-240VAC 50/60Hz

    Omax products are warrantied against
    manufacturer’s defects in material and workmanship from the original date of
    purchase, for the following years: 

    • Five Year Warranty for Microscopes: All our microscopes come with
    a five (5) year factory warranty against manufacturing defects, covering labor
    and parts. 

    • One Year Warranty for Binoculars: All our Binoculars come with a One (1) year factory warranty
    against manufacturing defects, covering labor and parts. 

    • One Year Warranty for Accessories: All our microscope accessories (USB cameras,
    illuminators, illumination, dust covers, and etc.) come with a one (1) year
    warranty, except when specified in the description.

    Warranty does not apply for
    consumable accessories and parts such as bulbs, batteries, fuses, cords,
    optical components or any add-on accessories such as mechanical specimen
    holders that are not built into the microscope stage as an integral part of the
    original manufacture, etc. Warranty does not cover microscopes, lenses cameras
    or other accessories that have become inoperable due to dirt or damage due to
    misuse or lack of maintenance. 



    Note: Buyers are responsible for return shipping and handling cost for warranty
    services. Our warranty covers parts and labor only.

    The M837L series compound microscope is a class leader offering professional features at an affordable price. The trinocular viewing head is customizable and is equipped with a dedicated photo port which works simultaneously with both eyepieces. This phase-contrast model includes a specialized turret condenser and objective lenses used to enhance details in low-contrast specimens such as live cells and microorganisms.

    Viewing Head

    The trinocular viewing head has a comfortable 45° incline for viewing while seated or standing, and can be swiveled 360°. Ocular spacing can be easily customized using sliding interpupillary adjustment. Dual diopters allow both eyepieces to be focused independently. The trinocular photo-port adds a dedicated mounting tube for cameras. The 23mm tube is height-adjustable to fine-tune the focus to match the eyepieces. Its simul-focal design allows simultaneous use with both eyepieces so no switching is necessary.

    Optics

    This model includes four brightfield objective lenses and four phase-contrast objective lenses. The brightfield lenses provide a magnification range from 40X to 1000X when used with the standard 10X eyepieces, while the phase-contrast lenses provide a 100X to 1000X range. Additional 20X eyepieces are included to expand the maximum magnification to 2000X.

    Objective Lenses

    Magnification Corrections NA Immersion Medium Cover-glass Thickness
    Brightfield
    4X achromatic 0.10 — 0.17mm
    10X achromatic 0.25 — 0.17mm
    40X achromatic 0.65 — 0.17mm
    100X achromatic 1.25 oil 0.17mm
    Phase Contrast
    10X achromatic ph 0.25 — 0.17mm
    20X achromatic ph 0.40 — 0.17mm
    40X achromatic ph 0.65 — 0.17mm
    100X achromatic ph 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 Illumination

    The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors. 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.

    A sub-stage mirror is included as an alternate light source when electricity is not available. The mirror can be mounted on top of the illuminator’s field lens to direct ambient light into the condenser.

    Phase Contrast

    A phase-contrast kit is included with a 5-position turret condenser and 4 achromatic phase-contrast objective lenses. Phase contrast is used to reveal detail in indistinct objects, such as unstained cells and microorganisms that would otherwise appear invisible. By using a combination of specialized objective lenses and a modified light condenser, these invisible objects can be visualized by manipulating variations in phase. This turret condenser allows you to easily rotate through the brightfield and four phase-contrast settings (10X, 20X, 40X, 100X). Each phase-contrast setting has a centerable annulus for proper alignment. Each of the phase-ring equipped objective lenses has achromatic corrections for improved color and resolution.

    Packing List:

  • One trinocular microscope
  • Four objectives lenses: 4X, 10X, 40X, 100X
  • One pair 10X eyepieces
  • One pair 20X eyepieces
  • One mirror
  • One AC power cord
  • Sample immersion oil
  • One dust cover
  • One phase-contrast turret condenser
  • Four phase-contrast objective lenses: 10X, 20X, 40X, 100X
  • One telescopic centering eyepiece
  • One green filter
  • One screwdriver
  • One storage case for phase-contrast kit

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