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Magnification: 40–1000x. Binocular head, plan achromatic objective lenses, an Abbe condenser, a dark field condenser (oil)

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 73992
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555004945
Package size (LxWxH) 52x36x34 cm
Shipping Weight 7.6 kg
Description

Levenhuk MED 25B Microscope is a binocular model with two condensers, a bright field and dark field one. Both condensers can be used for conducting observations using an oil immersion method. This microscope is designed for professional work in the field of medicine, microbiology, biochemistry, and other scientific fields. It can be used for research, diagnostics, or educational activities. This microscope allows for conducting observations at a magnification of up to 1000x, setting up Köhler illumination, and studying complicated detailed microstructures.

The trinocular head is 360° rotatable. The vertical part is inclined 30°, which provides for comfortable lengthy observations. The kit includes wide-field eyepieces with 10x magnification. They have a diopter adjustment and allow for adapting the optics to individual eyesight. A revolving nosepiece contains four plan achromatic objective lenses, which deliver an image without aberrations, a 100x objective lens allows for conducting observations using oil immersion. Two objectives use protective spring-loaded frames. The optics of all the accessories has an anti-fungal coating.

The specimens are placed on a stage with the help of a mechanical scale. The double-layer stage can be moved along two axes. Sharpness adjustment is done by rotating coarse and fine focusing adjustment knobs. The mechanisms have a small pitch and extra smooth sharpness adjustment. The specimens are illuminated from below by a 20W halogen bulb. Its illumination features adjustable brightness. The light passes through an Abbe condenser with an iris diaphragm, on which you can install filters (three filters are included in the kit). Moreover, you can install a dark field condenser on a microscope. It is included in the kit as well and allows for using oil immersion.

The light is powered by an AC power supply.

Features:

  • Binocular head
  • Plan achromatic optics provide magnification of 40x to 1000x
  • Anti-fungal coating of all the optical surfaces
  • 20W halogen light is powered by an AC power supply
  • Köhler illumination is available
  • Bright field and dark field observations are available

The kit includes:

  • Microscope base with a stand
  • 360° rotatable binocular head
  • 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
  • Dark field condenser (oil)
  • Filters: blue, green, yellow
  • Vial 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 25B Binocular Microscope is also compatible with other Levenhuk digital cameras(additional cameras are purchased separately). Levenhuk cameras are installed in the eyepiece tube instead of an eyepiece. This microscope is also compatible with any other digital microscope cameras.

Specifications
Product ID 73992
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555004945
Package size (LxWxH) 52x36x34 cm
Shipping Weight 7.6 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 planachromat: 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 12V/30W
Light filters blue, green, yellow
Additional collector lens, Köhler illumination, dark field condenser (oil)
User level experienced users, professionals
Assembly and installation difficulty level complicated
Application laboratory/medical
Illumination location lower
Research method bright field, dark 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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