Omegon Cronus WA 9mm 60° 1.25″ Eyepiece
Many entry-level telescopes come with basic eyepieces that do not make the most of the telescope's optics. The Cronus eyepiece range changes that. It offers a wide 60° field of view, comfortable viewing and sharp images - all without complicated adjustments. The result is observing sessions you will not forget.
Long eye relief - comfortable for everyone
Cronus eyepieces deliver generous eye relief across all focal lengths. This is genuinely unusual for standard designs. Your eye does not need to press right up against the lens, so observing stays relaxed and comfortable even during long sessions. The eyepiece also works well for glasses wearers, and the eye cup folds up for easy use.
See more sky with a 60° field of view
A 60° field of view is not just a number in a catalogue. In practice, it means you see up to one third more of the sky than with a standard Kellner eyepiece. Large objects such as open star clusters or nebulae fit into the view in their entirety. Observing Jupiter's Great Red Spot, Saturn's rings or globular clusters takes on a new dimension when you are not searching for the object at the edge of the field.
No frustrating black-out shadows
With many eyepieces, even a slight shift of your eye from the centre causes annoying black shadows to appear. For beginners who are still learning to use a telescope, this can be very frustrating. The Cronus eyepiece is designed to minimise this effect. The view stays clean and clear even when you are not looking through the exact centre.
Suitable for all types of astronomy
Good contrast and sharp images make the Cronus eyepiece a reliable choice for any kind of astronomical observing - whether you are studying planets or exploring deep-sky objects.
A complete, consistent eyepiece set
Cronus eyepieces are available in eight focal lengths. The shorter focal lengths are spaced in very fine steps, so you can build a set tailored exactly to your needs. Every eyepiece in the range belongs to the same optical family, giving you consistent image quality across your whole collection.
Technical specifications
| Parameter |
Value |
| Brand |
Omegon |
| Series |
Cronus WA |
| Focal length |
9 mm |
| Field of view |
60° |
| Barrel diameter |
1.25″ |
Why choose the Omegon Cronus WA 9mm eyepiece?
Wide field of view
The 60° apparent field of view lets you take in large star clusters and nebulae in a single, sweeping view.
Relaxed observing
Long eye relief means comfortable viewing for everyone, including glasses wearers.
Minimal blackout
The Cronus design greatly reduces the black-shadow effect that troubles so many standard eyepieces.
Consistent across the range
All eight focal lengths share the same optical design, so you always get a familiar, predictable experience at the eyepiece.
Easy to use
No complex adjustments needed. The eyepiece fits any standard 1.25″ focuser and is ready to use straight away.
Who is this eyepiece for?
The Omegon Cronus WA 9mm eyepiece suits beginners who want to get more from their telescope without spending a great deal of money. It also works well as an upgrade for experienced observers who appreciate a wide field and long eye relief. Glasses wearers will find the fold-up eye cup particularly useful.
Compatible telescopes
This eyepiece fits any telescope or spotting scope with a standard 1.25″ focuser. It works well with refractors, reflectors and catadioptric telescopes alike.
