Baader Planetarium Hyperion Aspherical 36mm 72° 2″ eyepiece
Are you looking for an eyepiece that gives you a truly wide, immersive view of the night sky - while keeping the image sharp all the way to the edges? The Baader Hyperion Aspherical 36mm wide-angle eyepiece is exactly what you need. It combines a generous 72° apparent field of view, premium aspherical optical elements, and practical design features that make it a great choice for both visual observers and those interested in afocal astrophotography.
Aspherical optics - sharp from center to edge
At the heart of this eyepiece is an aspherical lens element, which solves one of the most common problems in wide-angle eyepieces - coma and blurring toward the edges of the field. Thanks to a carefully calculated aspherical lens profile, the Hyperion Aspherical delivers noticeably sharper images across the entire field of view compared to similar eyepieces in the same class that use conventional spherical optics.
The result is a natural, sharp, and high-contrast image of stars and nebulae from the center all the way to the very edge - without the unpleasant star bloat at the periphery that experienced observers know all too well.
High light transmission with Phase FMC coatings
The anti-reflection Phase FMC (fully multi-coated) surface treatment ensures high light transmission and suppresses unwanted internal reflections. This makes a real difference when observing faint deep-sky objects - nebulae, galaxies, or globular clusters - where every extra photon counts.
Comfortable design for all observers
The eyepiece comes with a fold-down rubber eyecup that lets you easily adjust the eye relief to a comfortable position, whether you observe without glasses or with prescription lenses. The standard 2″ (50.8mm) barrel ensures compatibility with the vast majority of modern telescopes equipped with a 2″ focuser.
Underneath the rubber eyecup, there is an M43 thread - a feature that photographers will appreciate. It allows you to attach an adapter for afocal photography with a camera or camcorder directly, without needing any additional adapters.
The ideal survey eyepiece for wide-field observation
The Baader Hyperion Aspherical 36mm is an ideal choice as a so-called "survey" eyepiece. With longer focal length telescopes, it provides low magnification with a wide field of view - perfect for:
- Getting oriented on the night sky
- Observing large objects such as nebulae, open clusters, or galaxies
- Watching planetary transits
- Taking your first look at the sky after pointing the telescope
The 36mm focal length combined with a 72° field of view creates an experience that feels like you are actually flying through space - not peering through a keyhole.
Premium build quality
With a solid weight of 500g and precise construction, this eyepiece meets the standards of the premium Hyperion line that Baader Planetarium users have come to expect. It is an investment in optics that will serve you faithfully on every clear night.
About Baader Planetarium
Baader Planetarium is a German company with a long tradition in manufacturing astronomical optics and accessories. Their products are valued by astronomers worldwide for their high build quality, precise optics, and innovative design solutions.
The Hyperion line represents a well-balanced combination of performance, versatility, and value. The eyepieces are also modularly compatible with other Baader accessories - such as Barlow lenses and T2 adapters - giving you great flexibility when building your own observation setup.
Technical specifications
| Parameter |
Value |
| Focal length |
36mm |
| Apparent field of view |
72° |
| Barrel size |
2″ (50.8mm) |
| Optical design |
Aspherical |
| Lens coating |
Phase FMC (fully multi-coated) |
| Eyecup |
Fold-down rubber |
| Thread for photography |
M43 |
| Weight |
500g |
| Compatible accessories |
Baader Barlow lenses, T2 adapters |
