Skip to main content Skip to search Skip to main navigation
Please note that our minimum order value is £50

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 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

£21.00*
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

£66.99*
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

£9.90*