Omegon Oberon 23 mm Eyepiece 82° (2 inch): 82-degree field of view with spacewalk effect
The Omegon Oberon 23 mm is an ultra-wide-angle eyepiece with a field of view of 82 degrees. At that point, the edges disappear from your view: the familiar spacewalk effect, as if you are looking freely through space.
The housing is waterproof and filled with nitrogen. Dew and moisture, the permanent companions of Dutch observation nights, have no chance to cause internal fogging.





82 degrees: the spacewalk effect
With an 82-degree apparent field of view, the edge of the field lies outside your direct field of view. Objects float in a star field instead of inside a circle. On a Dobson without a tracking motor, it also means maximum tracking time before you need to readjust.

Built for humid nights
The waterproof, nitrogen-filled construction prevents internal condensation and keeps dust out. The multi-layer coating on all air-glass surfaces keeps contrast high, and the fold-down eyecup can be adjusted to your viewing distance.
The 2-inch barrel has filter threads for moon and nebula filters.

What do you see with 23 mm?
On a telescope with a 1200 mm focal length, a 23 mm objective lens provides 52x magnification with a true field of view of just over one and a half degrees. The Andromeda Nebula and the Veil Nebula, along with their surroundings, fit within this field of view.
Even as a finder scope on larger Dobsonians, the 23 mm is a logical staple.
Included
- Omegon Oberon 23 mm eyepiece
- Dust caps for both sides
Featured accessories
The Oberon series ranges from 7 to 32 mm: the short brand tips are 1.25 inches, and the long ones are 2 inches. An Omegon moon filter or nebula filter screws directly into the filter thread.
For whom yes and for whom no
- ✓ Observers who want the immersive 82-degree view without top-tier prices
- ✓ Dobson owners without a tracking motor: maximum tracking time per frame
- ✓ Ideal for those who frequently observe in humid conditions, thanks to the nitrogen fill
- ✗ For those who need the longest eye relief: the Redline series offers 20 mm of eye relief at 70 degrees
- Telescopes with only a 1.25-inch eyepiece holder
Specifications
| Focal length | 23 mm |
| Apparent field of view | 82 degrees |
| Optical design | ultra-wide angle, multi-coated |
| Housing | waterproof, filled with nitrogen |
| Mount | 2 inch, with filter thread |
| Eyecup | foldable |
| Series | Omegon Oberon 82° |
You can find more accessories for this brand at the Omegon brand page.





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