Skip to main content Skip to search Skip to main navigation

BRESSER 30mm 25x Plan Eyepiece

Help & Service for your product

Here you will find quick help, answers to frequently asked questions, and the direct path to support.

Service Portal

Please use our product help search to find answers to your questions. Simply enter the item number or EAN and open the appropriate help page directly.

Service Portal

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.
Skip product gallery

Customers also bought

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 Solar Filter M100x1 for Messier MC-90
BRESSER Solar Filter 294.6mm for Messier 10" DOBCategory: Spare Part for Messier Telescope SeriesDescription: The high-quality Solar Filter with a diameter of 294.6mm is suitable for Messier Art. 4716425 10" DOB. It enables safe observations of the solar surface, offers outstanding contrast, and is easy to mount. Suitable for the BRESSER Messier Telescope series. Please check compatibility using the product number on your optical instrument.

Available

€22.90*
BRESSER MikroCam SP 5.0 Microscope Camera
The BRESSER MikroCam SP microscope cameras help to make photos and videos with a microscope very easy.The modern CMOS sensors  give brilliant colors with very low noise and is the perfect choice for any application where true natural colors are important. The included imaging software has multiple adjustments for the capture of still images and videos. The integrated measuring* routine allows for a measurement in the camera live image. The software can be operated in the following languages: German, English, French, Polish, Russian, Turkish, Chinese. The camera housing includes the c-mount adapter thread. For use with 23,2mm adaptations, we recommend the optional, variable 0,5x reducer (item no. 5914005). For special applications the camera can also be mounted using the 1/4” camera tripod thread. FEATURES2592 x 1944 Pixel Sensor 5,70 mm x 4,28 mm (1/2,5'')High quality metal housingNumerous software functions, e.g. measurement, focus-stacking (combines several images for more depth of focus), mosaic (for larger image fields)Image and video capture, incl. time lapse functionGood compatibility with different microscopes SYSTEM REQUIREMENTSWindows 10 or 11Intel i3, i5, i7 or i9 CPU from the 6nd generation orAMD Ryzen CPUOptical Disk Drive or internet connection for software downloadUSB 2.0 SCOPE OF DELIVERYCamera headUSB 2.0 cable (approx. 1.8 m)Adapters for 23.2 mm, 30 mm and 30.5 mm eyepiece holdersCapture and image processing software

Available

€319.90*
%
BRESSER additional Objective 2x (ETD-201)
In some applications, it is desirable to increase the magnification by an additional 50x. With this 2x lens, you can use the Science ETD-201 at magnifications of 16 to 100x.. The working distance is reduced slightly. However, the depth of field is higher at the resulting magnification than when the magnification is increased by simply using another pair of eyepieces. A conversion lens is therefore the accessory of choice for magnifications greater than 50x. This additional lens is compatible with the following BRESSER microscopes: Science ETD 201 (5806200) DELIVERY CONTENT 1x additional lens (2x magnification)

Available

€25.00* €69.90* (64.23% saved)
%
BRESSER Smartphone Holder for Telescopes (1.25")
Take pictures with your smartphone through the telescope! With the Smartphone camera adapter this is now child's play! Simply screw the adapter to the eyepiece and use your smartphone as a camera with a super-telephoto lens. It lets you take pictures of distant objects as if you were very close. FEATURES Take photos through the telescope Smartphone camera with super telephoto lens Fits 31.7mm (1.25") eyepieces For eyepiece housing diameters from 32-34mm SCOPE OF DELIVERY Smartphone holder Locking ring for the smartphone

Available

€6.90* €9.90* (30.3% saved)
Skip product gallery

Customers also viewed

%
BRESSER 30mm 20x Plan Eyepiece
The plan eyepiece 20x (30mm) creates a smooth field of view and thus a very good image quality and edge sharpness.Compatible with all the microscopes with 30mm plug-in diameter, e.g.BRESSER Analyth ICD (5803500) BRESSER Science ETD-101 (5806100)FEATURES Magnification: 20x Diameter: 30 mm SCOPE OF DELIVERY1x Plan Eyepiece

Available

€42.00* €62.90* (33.23% saved)
%
BRESSER DIN Wide Field Eyepiece WF15x
Standard wide field microscope eyepiece with 15x magnification and 23.2mm diameter. Suitable for following microscopes: Erudit DLX (5102000)Researcher Bino (5722100)Researcher Trino (5723100)BioScience Trino (5750600)Science TRM-301 (5760100)Science ADL-601P (5770200)Science ADL-601F (5770500)Science MPO-401 (5780000)Science MTL-201 (5807000)Biolux ICD (5802000)FEATURES DIN WF 15x/23mm Diameter: 23.2mm Magnification: 15x SCOPE OF DELIVERYBRESSER DIN Wide Field Eyepiece WF15x

Available

€19.00* €39.90* (52.38% saved)
BRESSER Solar Eclipse Glasses (25 pieces) - Design B
With the BRESSER Solar Eclipse Glasses, you can experience one of nature's most captivating events safely and effortlessly. Whether it's an annular, total, or partial eclipse, the sight of the moon crossing in front of the sun is always breathtaking. Designed to protect your eyes, these specialist glasses are crafted in the USA to meet the highest safety standards. BRESSER Eclipse Glasses: Your safe window to the sun The glasses feature premium-quality white light filter film that effectively blocks harmful UV and IR rays. This ensures a bright and natural yellow image of the sun. Thanks to their sturdy construction, these glasses are built for repeated use. You can even use them to spot large sunspots or enjoy the rare sight of planes flying in front of the sun. Be prepared for the next eclipse and enjoy safe solar viewing with the BRESSER Solar Eclipse Glasses. FEATURES Specialist glasses for safe solar eclipse viewing Provides a natural, bright yellow image of the sun Ideal for safe visual solar observation Durable and resistant to damage Ready to use immediately Complies with EN ISO 12312-2:2015 standards, verified by independent testing at ICS INC. Laboratories SCOPE OF DELIVERY 25x Solar Eclipse Glasses

Available

€59.00*
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 MikroCam PRO HDMI Autofocus
The BRESSER MikroCam Pro HDMI Autofocus delivers excellent image quality with ease of use. The microscopic image is transferred in Full HD resolution and without delay to a HDMI monitor or TV screen. An optional 11" HDMI screen is available under item code 5914110 and can be mounted on the camera directly. It gives brilliant images with high contrast. Microscope images and video can now be stored on a SD card. The Sony Sensor gives excellent image quality and is very light sensitive. So this camera is recommended for low light contrast methods like darkfield or phase contrast. The autofocus enables the user to focus without using the mechanical focus wheel. When changing the objective, the focus will automatically be adjusted from the camera. The focus range from the "zero" position (which is the standard backfocus for C-Mount) up to 5,4 mm intrafocal to reach CS-Mount distance, and 10,6 mm extrafocal, to cover a wide range. In addition to the autofocus functionality, you can set the focus with the mouse or set a user defined focus range. The camera can be controlled with the included USB mouse directly through the on screen display. The on screen functionality now includes a measuring function as well, so the MikroCam Pro HDMI Autofocus upgrades your existing trinokular microscope to a fully equipped digital autofocus microscope. With the WiFi module, the camera can also supply the images in a wireless network. Due to this, a permanent connection to a PC via USB is not provided. But the professional software MikroCamLabII is still included with the camera for further image analysis after transferring the data stored on the SD card. The MikroCam Pro HDMI Autofocus has a wide range of applications:DocumentationAnalysisPresentationQuality ControlAutomationMachine Vision FEATURESHDMI-connection for a monitor or compatible TVBrilliant images in Full HD using HDMI (60 images / sec) or WiFi (up to 25 images / sec)Direct measuring function using the on screen display (*item no. 5916720 necessary for calibration)Wide dynamic range (WDR)Save images and video on SD card (max. 32 GB, not included)focus range: -5,4 mm bis 0 (C-Mount Abstand) bis 10,6 mm1/4" tripod connectionC-Mount for excellent adaptability, also suitable for C-Mount lenses SYSTEM REQUIREMENTSWindows 10 or 11Intel i3, i5, i7 or i9 CPU from the 6nd generation orAMD Ryzen CPUOptical Disk Drive or internet connection for software downloadUSB 2.0 SCOPE OF DELIVERYMikroCam Pro HDMI Autofocus with C-MountAC adapterMouseHDMI cableWiFi dongleSoftware (CD-ROM)

Available

€999.90*
%
BRESSER 30mm 15x Plan Eyepiece
The plan eyepiece 15x (30mm) creates a smooth field of view and thus a very good image quality and edge sharpness.Compatible with all the microscopes with 30mm plug-in diameter, e.g.BRESSER Analyth ICD (5803500) BRESSER Science ETD-101 (5806100)FEATURES Magnification: 15x Diameter: 30 mm SCOPE OF DELIVERY1x Plan Eyepiece

Available

€25.00* €62.90* (60.25% saved)
BRESSER JUNIOR Student Microscope BIOLUX SEL
The BRESSER JUNIOR Student Microscope with its extensive range of accessories offers an optimal introduction to Microscopy. Unique to these models is the Barlow-Zoom-System in the eyepiece socket: By means of a pull-out additional lens, the magnification can be continuously changed up to 2 times during visual observation, so that together with 3 objectives and 2 interchangeable wide-field eyepieces magnifications of 40x to 1600x can be achieved. The BRESSER JUNIOR Student Microscope has an adjustable LED for transmitted light and incident light incl. filter disc with color filters and apertures. Thus the illumination can always be optimally adjusted. The additional incident light illumination can also be used to microscope objects that are not transparent, such as leaves, small insects and much more. This makes it particularly easy to get started in microscopy!The power supply is provided by batteries (three pieces type AA), so that microscopic work can also be carried out in the vicinity without a socket. The accessories already include permanent specimens and 5 empty slides and cover glasses for making your own specimens. The set also includes a preparation set consisting of a MicroCut, a knife, a pair of tweezers, a stick and a tube.The Smartphone adapter makes it possible to save the recordings on your smartphone or share them with friends and family! There is so much exciting to discover in the microcosm, start now with your BRESSER student microscope ! Available in the following colors: Red; Green; Blue; Purple FEATURES Biological microscope Barlow Zoom System LED illumination with transmitted and reflected light Battery powered Extensive range of accessories to get started immediately Max. Object height with incident light: approx. 4 mm (without slides)Includes experiment kit for breeding brine shrimp (Artemia) SCOPE OF DELIVERY Microscope 2 widefield eyepieces: 10x and 20x 3 Lenses: 4x, 10x and 40x Barlow lens with up to 2x magnification Microscopy utensils Experiment kit (magnifier box, brine shrimp eggs, yeast) Microcut microtoma Empty slides and cover glasses Permanent preparations Smartphone adapter

Available

From €99.90*