Bresser Kellner eyepiece 20mm 1.25 inch: affordable spare eyepiece
The Bresser Kellner 20 mm is a simple eyepiece with three coated lenses. With a 20 mm focal length, you get a medium magnification with a wide field of view, suitable for the moon and bright deep-sky objects.
Bresser also offers this eyepiece as a replacement part for its own entry-level telescopes. It is therefore primarily an affordable replacement or addition to a standard set, not an upgrade: if you want even sharper images and higher contrast, choose a Plossl eyepiece from the same series.


Features
- Three coated lenses in a classic Kellner design
- Reversible rubber eyecup for viewing comfort
- Standard 1.25-inch barrel, fits virtually any telescope
- Economical replacement for a lost or damaged standard eyepiece
Compatibility
Fits into any 1.25-inch (31.7 mm) focuser or star diagonal, and therefore on virtually any entry-level and mid-range telescope. Can also be used separately alongside the eyepieces that came with your telescope.
Specifications
| Focal length | 20 mm |
| Optical design | Waiter, 3 lenses |
| Coating | Coated lenses |
| Mount | 1.25 inches (31.7 mm) |
| Eyecup | Reversible rubber |
You can find more accessories for this merk at the Bresser 1TP5 Page.





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