Open Box 40X-2000X Trinocular Compound Siedentopf LED Microscope, Reversed Nosepiece

SKU: CL-M8311

Availability: In Stock

$324.99 $194.99

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.
  • A heavy-duty, ergonomic microscope for students and professionals.
  • Professional 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.
  • Super-bright LED lighting provides cool, daylight-balanced illumination.
  • The trinocular photo port provides a dedicated mount for a camera.
  • This is an open box item and all Open Box items are non-returnable

This is an open-box M8311 microscope.

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.

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.

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
    • head style Trinocular
    illuminatio style Transmitted
    light type LED

    This is an open-box M8311 microscope.

    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.

    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.

    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

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