Omegon Oberon 23mm 82° 2″ Eyepiece
An 82-degree field of view means one thing: you do not see edges, you see the universe. The Omegon Oberon 23mm 82° wide-angle eyepiece creates the so-called space-walk effect - the feeling of floating freely among stars and nebulae, with no frames and no borders. Whether you are exploring vast emission nebulae or drifting slowly through star fields, this field of view gives you space that narrow eyepieces simply cannot offer.
The waterproof, nitrogen-filled body is not just a marketing feature - it is a genuine advantage for anyone who observes outdoors. Moisture cannot get inside, the lenses stay clean, and the eyepiece body can be rinsed with water when needed. The rubber-coated, non-slip grip ensures a secure hold even on cold nights. The anodised aluminium barrel resists everyday use without showing wear.
The Oberon 23mm is not a one-purpose eyepiece. High light transmission, a well-thought-out optical design, and effective baffles deliver contrast that both planetary observers and hunters of faint galaxies and nebulae will appreciate. The longer focal length provides an overview magnification with enough detail to be useful. The Oberon range includes six eyepieces in total, with focal lengths from 7 mm to 32 mm - so you can build your collection and cover the full magnification range without gaps.
The Omegon Oberon 23mm 82° 2″ eyepiece is suitable for telescopes with a focal ratio from f/6. The filter thread allows you to attach astronomical filters directly, with no adapters needed - a practical detail that you will appreciate more than you might expect during a night session.
Key features
- 82-degree apparent field of view for an immersive space-walk experience
- Waterproof construction with nitrogen filling - moisture stays out
- Rubber-coated body with non-slip grip for secure handling in cold conditions
- Anodised aluminium barrel for long-term durability
- High light transmission and effective baffles for excellent colour contrast
- Direct filter thread - no adapters required
- Compatible with telescopes from f/6
- Part of the Oberon range: six eyepieces from 7 mm to 32 mm focal length
Who is this eyepiece for?
The Oberon 23mm suits a wide range of observers. If you are new to astronomy, the generous field of view makes it easy to locate objects and enjoy sweeping views of star clusters and the Milky Way. More experienced observers will value the contrast performance when targeting faint nebulae or extended galaxies such as the Andromeda Galaxy. The longer focal length also makes it a comfortable choice for extended observing sessions.
Technical specifications
| Parameter |
Value |
| Brand |
Omegon |
| Series |
Oberon |
| Focal length |
23 mm |
| Apparent field of view |
82° |
| Barrel diameter |
2″ |
| Minimum recommended focal ratio |
f/6 |
| Body construction |
Anodised aluminium, rubber-coated |
| Waterproof |
Yes - nitrogen-filled |
| Filter thread |
Yes - direct attachment, no adapter needed |
| Available focal lengths in the Oberon range |
7 mm, 10 mm, 14 mm, 18 mm, 23 mm, 32 mm |
The Oberon range
The Oberon 23mm is one of six eyepieces in the Omegon Oberon series. Each eyepiece shares the same optical quality and robust build, so you can expand your collection gradually and cover every magnification you need - from high-power planetary views to low-power deep-sky sweeps.
Why choose a wide-angle eyepiece?
A standard eyepiece typically offers a field of view of around 50 to 60 degrees. At 82 degrees, the Oberon 23mm delivers noticeably more sky. Objects stay in view longer as the Earth rotates, making it easier to study them in detail. Deep-sky objects such as star clusters and nebulae fill the view in a way that simply is not possible with a narrower eyepiece. The space-walk effect is not just a description - it is what you will feel the first time you look through it.
Waterproof design - why it matters
Observing outdoors means dealing with dew, humidity, and temperature changes. The nitrogen filling in the Oberon 23mm prevents internal fogging, and the sealed body keeps moisture away from the optical elements. You do not need to worry about storing the eyepiece carefully after a damp session - simply wipe it down or rinse it if needed.
