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BRESSER DIN Lens 20x

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Guides & Tips

FAQ - Frequently Asked Questions

For this application we recommend the BRESSER Erudit DLX 40-1000x microscope in combination with a USB camera, e.g. the BRESSER MikroCam 1.3 MP. This solution offers better image quality and flexibility than a simple LCD microscope.

If you want to identify bacteria, it is usually more useful to create a culture. Microscopes are generally only sufficient to determine whether the bacteria are, for example, spherical or rod-shaped.
The Barlow lens is already installed in the eyepiece tube on many devices. It can be pulled out at the upper ridge to use the zoom function.
Possible causes:
 
  • Sample too thick / unsuitable: Use thin samples or fixed smears.
  • No cover glass or incorrect thickness: Objectives are optimized for cover glasses.
  • Condenser incorrectly adjusted: Do not open the diaphragm too far – otherwise contrast will be low.
  • Magnification too high: Rule of thumb: maximum 1000 × objective aperture. Example: With a 40x objective with aperture 0.65, the limit is about 650x.

Product and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • In case of defects, contact your retailer or the manufacturer.
  • Small parts can be swallowed. Keep small parts out of reach of children, allow children to work with the device only under supervision.
  • Keep packaging materials away from children. There is a risk of suffocation.
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Accessories

BRESSER Cover Plates 22 x 22 mm 100 pcs
The Bresser cover slips have a size of 22 x22 mm and a thickness range from 0,13 – 0,17 mm. They are used to cover the sample on the slide. A thin and even sample is necessary for observations with high magnification. These cover slips are designed to work with all objectives that have the thickness of 0,17 mm included in their optical design. Usually you find this number printed on the objective. For beginner’s and student microscopes, these cover glasses are also suitable. FEATURES Cover slips, square, size 22x22mm Soda lime glass pre cleaned SCOPE OF DELIVERY 100 cover slips Kunststoff-Box

Available

€4.90*
Cover glasses, 200 pcs. 24x50mm Boro 3.3
Extra big cover glasses made from pure white, smooth Borosilicate glass (Boro 3.3). These cover glasses are especially suitable for liquid samples, like plankton or cell culture media. Also useful for skin scrapes from Koi or ornamental fish. You can diagnose a bigger sample volume in one go, making the diagnosis faster and more reliable. The sample will not dry out as fast as usual.Boro 3.3 is a high tech glass material with excellent surface and optical quality. Keep in mind, that the cover glass is not only a cover, but works as an optical element and will influence the resulting image quality. Most microscope objectives are designed for cover glasses of a certain thickness (Usually 0,17mm; marked on the objective).The cover glasses are precleaned and ready to use.Boro 3.3 glass is highly transparent and has excellent surface quality. For UV it is significantly more transparent than soda-lime glass and therefore especially suitable for fluorescence microscopy.SCOPE OF DELIVERY 200 cover glasses 24x50 in plastic box.  Incl. drying agent, vacuum sealed.

Available

€17.90*
BRESSER Blank Slides/Cover Plates 50/100 pieces
The set slides / cover plates is use to make Preparations for biological microscopes. The slide holds the preparation it will be covered with a cover plate.SCOPE OF DELIVERY50 blank slides 76x26mm100 cover plates (0,17mm thickness)These BRESSER slides and cover glasses are compatible with the following BRESSER microscopes:Duolux (5012000)BioDiscover (5013000)BIORIT (5101000)Erudit DLX (5102000)ERUDIT MO (5110000)Researcher Bino (5722100)Researcher Trinocular (5723100)LCD microscope (5201000, 5201002)Science TRM 301 (5760100)BioScience Bino (5750500)BioScience Trino (5750600)Science ADL 601 P (5770200)Science ADL 601 F (5770500)Science MPO 401 (5780000)Science IVM-401 (5790000)

Available

€9.90*
BRESSER Set Microscope Slides
Slides and cover glasses are an indispensable accessory which has also impact on the image quality. For most biological microscopes, the cover glass thickness is an important optical parameter, which is therefore included in the optical design and, if so, printed on the sleeve of every objective. You can usually see the number 0.17 which is the thickness in millimeters. For demanding applications in the laboratory, or for microphotography, using cover glasses with the desired thickness and high quality is necessary.The cover glasses included in the set are made of Boro 3.3 glass and are standardized to a thickness of 0.16-0.19mm. So they match the desired 0.17mm really good and give the best possible image quality. These Boro 3.3 cover glasses are pure white, without streaks and are pre-cleaned and ready to use. They are also especially suitable for fluorescence microscopy.The slides are made of soda lime glass, and have ground edges for safe handling. They have a matte field for writing on both sides (top and bottom). Slides and cover glasses are packed separately and in a vacuum sealed bag, containing moisture absorbent. They can be stored for a long time without loss of quality from hydrolysis and are easy to take out.

Available

€14.90*
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BRESSER DIN Objective 60x
The BRESSER DIN-Objective 60x is an achromatic objective with standard diameter to enhance the magnification variety of your BRESSER Erudit DLX or Researcher Microscope. The objective has a parfocal length of 45mm. It is not recommended for the models Erudit Basic Mono/Bino, as these have a shorter parfocal length.

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BRESSER Immersion oil 5ml nD=1.515
The immersion oil is used as a medium to get focus with a 100x oil objective. Without this oil it's not possible to get a sharp image.Volume: 5 ml

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BRESSER Set Microscope Slides
Slides and cover glasses are an indispensable accessory which has also impact on the image quality. For most biological microscopes, the cover glass thickness is an important optical parameter, which is therefore included in the optical design and, if so, printed on the sleeve of every objective. You can usually see the number 0.17 which is the thickness in millimeters. For demanding applications in the laboratory, or for microphotography, using cover glasses with the desired thickness and high quality is necessary.The cover glasses included in the set are made of Boro 3.3 glass and are standardized to a thickness of 0.16-0.19mm. So they match the desired 0.17mm really good and give the best possible image quality. These Boro 3.3 cover glasses are pure white, without streaks and are pre-cleaned and ready to use. They are also especially suitable for fluorescence microscopy.The slides are made of soda lime glass, and have ground edges for safe handling. They have a matte field for writing on both sides (top and bottom). Slides and cover glasses are packed separately and in a vacuum sealed bag, containing moisture absorbent. They can be stored for a long time without loss of quality from hydrolysis and are easy to take out.

Available

€14.90*
BRESSER Blank Slides/Cover Plates 50/100 pieces
The set slides / cover plates is use to make Preparations for biological microscopes. The slide holds the preparation it will be covered with a cover plate.SCOPE OF DELIVERY50 blank slides 76x26mm100 cover plates (0,17mm thickness)These BRESSER slides and cover glasses are compatible with the following BRESSER microscopes:Duolux (5012000)BioDiscover (5013000)BIORIT (5101000)Erudit DLX (5102000)ERUDIT MO (5110000)Researcher Bino (5722100)Researcher Trinocular (5723100)LCD microscope (5201000, 5201002)Science TRM 301 (5760100)BioScience Bino (5750500)BioScience Trino (5750600)Science ADL 601 P (5770200)Science ADL 601 F (5770500)Science MPO 401 (5780000)Science IVM-401 (5790000)

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Objectiv, achromatic 100x Oill/1,25 with spring
The BRESSER DIN-Objective 100x oil is an achromatic objective with standard diameter to enhance the magnification variety of your BRESSER Erudit DLX or Researcher Microscope. The objective has a parfocal length of 45mm. For use immersion oil is required.It is not recommended for the models Erudit Basic Mono/Bino, as these have a shorter parfocal length.

Available

€59.90*
BRESSER DIN PL Objective 20x, Infinity
The BRESSER DIN PL Objective 20x, Infinity has a higher quality optics and thus achieves a particularly high resolution of the image. The plan correction ensures an smooth image field (no refocusing between the center and edge of the image field). Therefore especially recommended for photographic applications. This lens is infinity corrected and specially designed for the BRESSER Science Infinity microscope. SCOPE OF DELIVERY 1 piece 20x planachromatic lens, Infinity

Available

€229.90*
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BRESSER Planachromat 20x
BRESSER Planachromat 20x - this DIN-Objectives are processed with the highest quality materials to enhance the image replication.Plan correction minimizes refocus between center and edge of field and is especially useful for imaging.Fits the following models:• Erudit DLX (5102000, 5102060)• Researcher Bino (5722100)• Researcher Trino(5723100)• Science TRM 301 (5760100)• BioScience Trino (5750600)• Science ADL 601 P (5770200) only for observations with transmitted illumination• Science MPO 401 (5780000)Not recommended for models Erudit Basic Mono and Bino (5102100, 5102200) and Erudit MO (5110000) as those have a different parfocal length.

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BRESSER DIN Objective 60x
The BRESSER DIN-Objective 60x is an achromatic objective with standard diameter to enhance the magnification variety of your BRESSER Erudit DLX or Researcher Microscope. The objective has a parfocal length of 45mm. It is not recommended for the models Erudit Basic Mono/Bino, as these have a shorter parfocal length.

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€49.90*
BRESSER Immersion oil 5ml nD=1.515
The immersion oil is used as a medium to get focus with a 100x oil objective. Without this oil it's not possible to get a sharp image.Volume: 5 ml

Available

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BRESSER Researcher Trino 40-1000x Microscope
The Researcher Trino offers observing fun for an unbeatable price. Based on a solid metal body and equipped with DIN eyepieces and objectives, this transmission-type microscope fulfils even professional demands with its optical and mechanical quality. Many details, for example the cross table for optimal object positioning or the focuser with coarse and fine drive for dead-sharp images. Instead of a binocular head, the Trino Researcher has a trinocular head. With this equipment, the observer can make binocular obseravtions and - at the same time! - take photographs or use a PC eyepiece Features Type: Biological microscope View: Trinocular Application range: Biology, Education, Teaching, Imaging Solutions, Botany Illumination: LED with dimmer Level: Intermediate, Expert Warranty: 2 years Double-lens condensor with iris diaphragm Incl. mechanical stage Adjustable eye relief Specifications Comfortable binocular view, 360° turnable head Magnifications: 1000x, 400x, 100x, 40x Illumination: LED Eyepieces: 10x Eyepiece diameter: 23.2 mm Objectives: 4x, 10x, 40x, 100x (oil immersion) Power supply: 220/240V Included Accessories 4 DIN-objectives 2 eyepieces Mechanical stage Condensor Trinocular head

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BRESSER LCD Student Microscope 8.9cm (3.5")
With its 8.9 cm (3.5") LCD monitor, this student microscope allows several people to view objects at the same time. The microscope can be used for both transmitted light and (limited) reflected light microscopy. You can take photos of your observations or record them as a movie. The device has a card slot for SD cards and a USB port (for transferring photos/videos saved on an SD card). The magnification is 50-500x, the digital magnification reaches up to 2,000x (4x digital zoom). It is supplied with a comprehensive range of accessories. Thanks to the integrated LED incident light illumination, even opaque objects can be viewed without time-consuming preparation. Objects up to 3mm high can be viewed, e.g. small insects, plant parts, sand and much more. This allows children in particular a quick and uncomplicated introduction into microscopy. Transmitted light microscopy then opens up the world of cells and microorganisms. It doesn't just have to be permanent specimens; an onion skin, tiny moss leaves or water plant leaves already clearly show the structure of the plant cells. Water samples from a pond, aquarium or watering can contain numerous ciliates, rotifers and other protozoa. There is a lot to discover with the BRESSER LCD microscope, and several people can always relax and observe on the screen at the same time. FEATURES Type: Biological microscope for transmission/Incident Illumination: LED, AC Power Color filterwheel: red, green (bright, dark), yellow, blue Camera resolution: 5MP SCOPE OF DELIVERY Microscope 4x/10x/40x objectives mechanical desk with nonius USB cable Color filter wheel 5 permanent samples / slides 10 blank slides 20 cover glasses Large accessory pack with yeast, gum media, sea salt, artemia eggs, scissor, tweezers, pipette, 2 preparing needles, microtome, hatchery with magnifying lid

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€244.90*
Refurbished
%
BRESSER additional Objective 0.7x (ETD-201) (Refurbished)
NOTE: This item is a used or returned product. This means: The item may show slight signs of use and the packaging may differ from the original packaging. Please note that refurbished items generally come with a 12-month warranty.In some applications, it is desirable to decrease the magnification factor. With this 0.7x lens, you can use the Science ETD-201 at magnifications of 5.6 to 35x.. The working distance is increased slightly. This is particularly useful if you need to work under the microscope. A larger and brighter field of view is also useful when using a microscope camera. The working distance is 137 mm. This additional lens is compatible with the following BRESSER microscopes: Science ETD 201 (5806200) DELIVERY CONTENT 1x additional lens (0.7x magnification)

Available

€36.99* €64.90* (43% saved)