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Magnification: 40–1000x. Binocular head, semi-plan achromatic objective lenses, an Abbe condenser with an iris diaphragm, and a filter holder

Binocular
The microscope head is a core element of the microscope that you look through to see a magnified sample
40 — 1000
How much the size of a sample increases when you observe it through a microscope
Laboratory/medical
Application and use of the microscope
Availability

Product ID 73988
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555004907
Package size (LxWxH) 52x36x34 cm
Shipping Weight 7.28 kg
Description

Levenhuk MED 20B Binocular Microscope is designed for professional research of the microcosm at magnifications of 40 to 1,000 times. It uses semi-plan achromatic optics that minimize chromatic aberrations and significantly flatten the curvature of the field of view. This microscope is an excellent acquisition for the microbiology department, medical laboratory, or research institute.

A binocular head is perfect for lengthy observations because you can look through the microscope with both eyes. The visual part features a 30° inclination angle. The trinocular head is 360° rotatable: this feature is useful for group research.

Wide-field eyepieces provide 10x magnification and allow for adjusting diopters in order to obtain an image that is as sharp as possible. The coarse and fine focusing allows for adjusting image sharpness. Both focusing systems have a low pitch and allow for setting up a microscope for complicated observations. A revolving nosepiece contains four objective lenses; 40x and 100x objectives are equipped with spring-loaded frames. A 100x objective can be used for observations using oil immersion (a bottle with immersion oil is included in the kit). The eyepieces and objective lenses are protected with a layer of anti-fungal coating.

A double-layer stage comes with a mechanical scale. The lighting system consists of a lower light source and Abbe condenser with an iris diaphragm and filter holder. A 20W halogen bulb is used as a light source. The light brightness is adjustable. The light is powered by an AC power supply. In addition, this microscope allows for setting up Köhler illumination.

Features:

  • Binocular laboratory microscope
  • Semi-plan achromatic optics, magnification of 40x to 1000x
  • Anti-fungal coating of all the optical surfaces
  • Halogen light powered by an AC power supply
  • Köhler illumination is available

The kit includes:

  • Microscope base with a stand
  • 360° rotatable binocular head
  • Semi-plan achromatic objective lenses 4x, 10x, 40xs, 100xs (oil) with an anti-fungal coating
  • Wide-field eyepieces: WF10x/18mm with an anti-fungal coating (2 pcs)
  • Abbe condenser N.A. 1.25 with an iris diaphragm and a filter holder
  • Filters: blue, green, yellow
  • Bottle of immersion oil
  • Fuse (2 pcs)
  • Power cord for microscope
  • Dust cover
  • User manual and lifetime warranty

Caution:

Please refer to the specifications table for the correct mains voltage and never attempt to plug a 110V device into 220V outlet and vice versa without using a converter. Remember that mains voltage in the U.S. and Canada is 110V and 220–240V in most European countries.

Some things you can see under a microscope:

Levenhuk MED 20B Binocular Microscope is compatible with Levenhuk digital cameras (purchased separately). Levenhuk cameras are installed in the eyepiece tube instead of an eyepiece.

Specifications
Product ID 73988
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555004907
Package size (LxWxH) 52x36x34 cm
Shipping Weight 7.28 kg
Type biological, light/optical
Head binocular
Optics material optical glass with anti-fungal coating
Nozzle 360 ° rotatable
Head inclination angle 30 °
Magnification, x 40 — 1000
Eyepiece tube diameter, mm 23.2
Eyepieces WF10x/18mm, wide-field with diopter adjustment (2 pcs.)
Objectives semi-plan achromatic: 4x, 10x, 40xs, 100xs (oil immersion)
Revolving nosepiece for 4 objectives
Interpupillary distance, mm 55 — 75
Stage, mm 140x140
Stage moving range, mm 75/50 (movement in horizontal (X and Y) directions)
Coarse focusing travel, mm 17
Stage features mechanical double-layer
Eyepiece diopter adjustment, diopters ±5
Condenser Abbe N.A. 1.25 with an iris diaphragm and filter holder
Diaphragm iris
Focus coaxial, coarse (0.5 mm) and fine (0.002 mm), with rack and pinion
Body metal
Illumination halogen
Brightness adjustment
Power supply 100–240V
Light source type 6V/20W, 85–230V AC
Light filters blue, green, yellow
Additional collector lens, Köhler illumination
User level experienced users, professionals
Assembly and installation difficulty level complicated
Application laboratory/medical
Illumination location lower
Research method bright field
Pouch/case/bag in set dust cover
Reviews
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Eye under a microscope: insects’ photo (20.04.2020)
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What does hair look like under a microscope? (17.05.2020)
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How does the aperture of a microscope objective lens work? (17.05.2020)
Learn what a numerical aperture is and how to choose a suitable objective lens for your microscope here
A spider under a microscope: photos and peculiarities of studying the slide (18.05.2020)
Learn what a spider looks like under microscope, when the best time is to take photos of it, how to study it properly at magnification and more interesting facts about observing insects and arachnids
What does a microscope consist of? (18.05.2020)
This review for beginner explorers of the micro world introduces you to the optical, illuminating and mechanical parts of a microscope and their functions
Paramecium caudatum - your first friend from the microworld (21.11.2016)

Short article about Paramecium caudatum - a microorganism that is interesting to observe through any microscope

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