40X-2000X M8311 Series Trinocular Darkfield Microscope + 1.3MP USB 2.0 Digital Camera

SKU: M8311-A191-C13U

Availability: In Stock

$553.99

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 expanded magnification range using high-quality, color-coded objective lenses, and 10X and 20X eyepieces for eight unique settings ideal for viewing cellular structures and microorganisms.
  • Includes a dry darkfield condenser for low and intermediate magnifications. Darkfield observation will provide contrast in otherwise indistinguishable objects by highlighting changes in refractive index.
  • Features include a Siedentopf trinocular head for precise adjustments, a 2-layer mechanical stage with low-position controls, and coaxial coarse and fine focus for ergonomics and an efficient workflow.
  • The LED light-source provides energy-efficient, daylight-balanced illumination. The low-heat illumination system can prolong the viability sensitive specimens.
  • The trinocular viewing head offers an additional port for mounting a camera.
  • View live images and capture photos and videos with the included 1.3MP USB 2.0 camera. Included software for Windows, Mac, and Linux provide tools for image processing, measuring, and more.

The M8311 trinocular compound microscope is designed for educational and professional use. The medium-sized profile offers streamlined ergonomics with plenty of working room. The heavy-duty metal build and enamel coating will last for many years through rigorous use. Along with the microscope's standard condenser used for brightfield observation, a specialized darkfield condenser is included which provides an additional observation method to enhance contrast when viewing certain low-contrast specimens including unstained live cells.

Viewing Head

To customize the microscope to your viewing comfort, the eyepiece spacing can be easily adjusted using a precision Siedentopf mechanism. A diopter is available on the left ocular tube to compensate for asymmetry, and the ocular tubes are angled at 30° to comfortably accommodate a seated position without neck strain. The head can also be rotated 360° to accommodate multiple users. Various eyepieces can be used to increase the overall optical magnification. 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.

Optics

The microscope is equipped with four objective lenses mounted on a rotating turret to quickly move through the various magnifications. The lenses use DIN international standards, and are achromatically corrected to improve clarity and color accuracy. They provide a magnification range from 10X to 1000X when used with the standard 10X eyepieces, ideal for viewing a wide range of specimens including cellular structures and bacteria. Additional 20X eyepieces are included to expand the maximum magnification to 2000X with 8 unique levels.

Objective Lenses

Magnification Corrections NA Immersion Medium Cover-glass Thickness
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

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. An adjustable height limit can be set to prevent damage to the lenses and specimens while focusing.

LED Illumination

The LED sub-stage lighting provides cool, energy-efficient illumination. The 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.

Darkfield

This model includes a darkfield condenser which can be used in place of the standard Abbe condenser to improve contrast and highlight certain details in low-contrast specimens. While certain specimens may be difficult to observe using brightfield illumination, darkfield exploits variances in specimen consistency by highlighting changes in refractive index. By avoiding a staining process, some live cells and microorganisms can be observed in their natural states. The condenser is designed to work with objective lenses up to 40X with numerical apertures below 0.9.

Digital Imaging

The included 1.3MP camera and software allow you to preview and record photos and videos on your computer. The camera attaches to your computer using a simple USB 2.0 connection. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, and a full complement of measuring tools. Cutting-edge features such as real-time auto-stitching and focus-stacking add new dimensions to imaging. A lite version of our software is available for Mac and Linux with essential functionality for capturing photos and videos.

Packing List:

  • One trinocular microscope head
  • One microscope body
  • Four objective lenses: 4X, 10X, 40X and 100X
  • One pair 10X eyepieces
  • One pair 20X eyepieces
  • One dust cover
  • One sample immersion oil
  • Two color filters: blue, green
  • One darkfield condenser
  • One C-mount USB camera
  • One reduction lens
  • One USB Type B to USB type A cable
  • Software
  • Camera Connectivity USB 2.0
    Camera Lens Mount C-Mount
    Camera Pixel 1.3MP
    Camera Type USB C-Mount Camera
    Head Type Trinocular
    Illumination Type Transmitted
    Light Source LED
    Microscope Format Upright
    Objective Lenses 4X, 10X, 40X, 100X
    Ocular Diameter 23.2mm
    Optical Corrections Achromatic
    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 M8311 trinocular compound microscope is designed for educational and professional use. The medium-sized profile offers streamlined ergonomics with plenty of working room. The heavy-duty metal build and enamel coating will last for many years through rigorous use. Along with the microscope's standard condenser used for brightfield observation, a specialized darkfield condenser is included which provides an additional observation method to enhance contrast when viewing certain low-contrast specimens including unstained live cells.

    Viewing Head

    To customize the microscope to your viewing comfort, the eyepiece spacing can be easily adjusted using a precision Siedentopf mechanism. A diopter is available on the left ocular tube to compensate for asymmetry, and the ocular tubes are angled at 30° to comfortably accommodate a seated position without neck strain. The head can also be rotated 360° to accommodate multiple users. Various eyepieces can be used to increase the overall optical magnification. 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.

    Optics

    The microscope is equipped with four objective lenses mounted on a rotating turret to quickly move through the various magnifications. The lenses use DIN international standards, and are achromatically corrected to improve clarity and color accuracy. They provide a magnification range from 10X to 1000X when used with the standard 10X eyepieces, ideal for viewing a wide range of specimens including cellular structures and bacteria. Additional 20X eyepieces are included to expand the maximum magnification to 2000X with 8 unique levels.

    Objective Lenses

    Magnification Corrections NA Immersion Medium Cover-glass Thickness
    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

    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. An adjustable height limit can be set to prevent damage to the lenses and specimens while focusing.

    LED Illumination

    The LED sub-stage lighting provides cool, energy-efficient illumination. The 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.

    Darkfield

    This model includes a darkfield condenser which can be used in place of the standard Abbe condenser to improve contrast and highlight certain details in low-contrast specimens. While certain specimens may be difficult to observe using brightfield illumination, darkfield exploits variances in specimen consistency by highlighting changes in refractive index. By avoiding a staining process, some live cells and microorganisms can be observed in their natural states. The condenser is designed to work with objective lenses up to 40X with numerical apertures below 0.9.

    Digital Imaging

    The included 1.3MP camera and software allow you to preview and record photos and videos on your computer. The camera attaches to your computer using a simple USB 2.0 connection. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, and a full complement of measuring tools. Cutting-edge features such as real-time auto-stitching and focus-stacking add new dimensions to imaging. A lite version of our software is available for Mac and Linux with essential functionality for capturing photos and videos.

    Packing List:

  • One trinocular microscope head
  • One microscope body
  • Four objective lenses: 4X, 10X, 40X and 100X
  • One pair 10X eyepieces
  • One pair 20X eyepieces
  • One dust cover
  • One sample immersion oil
  • Two color filters: blue, green
  • One darkfield condenser
  • One C-mount USB camera
  • One reduction lens
  • One USB Type B to USB type A cable
  • Software
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