Baader Planetarium Hyperion-Aspheric Eyepiece
Best wide field eyepiece for deep sky observation enthusiasts.
This eyepiece manages to deliver a sprawling, distortion-free view without the bulk of traditional wide-field designs. By prioritizing aspheric optics, it keeps the glass lightweight while remaining versatile enough to switch between visual observing and camera projection. It is the rare accessory that feels just as comfortable for eyeglass wearers as it does for serious astrophotographers.
$306.00
at
Agena AstroProducts
More Hyperion options
Who it's for
- Deep-sky observers seeking breathtaking wide-angle views of star clusters
- Astrophotographers needing a seamless connection between eyepiece and camera
- Spectacle wearers requiring a comfortable and full field of view
Who should skip it
- Owners of fast Newtonian reflectors prioritizing edge-to-edge perfection
- Minimalist travelers or users with lightweight, portable telescope setups
- Lunar and planetary specialists demanding absolute contrast and zero glare
Performance breakdown
Optical Clarity
Phantom Group coatings deliver exceptional contrast and sharp, distortion-free views.
Versatility
Dual-barrel design seamlessly adapts to both 1.25-inch and 2-inch focusers.
Viewing Comfort
Generous eye relief makes long observation sessions easy for eyeglass wearers.
Imaging Capability
Direct camera threading simplifies projection imaging for astrophotography enthusiasts.
Field of View
Wide 72-degree field provides immersive, expansive vistas of the night sky.
Build Efficiency
Aspheric elements keep the weight low without sacrificing optical performance.
Key Specs
Focal Length
36mm
Apparent Field of View
72 degrees (2 inch mode) or 58 degrees (1.25 inch mode)
Barrel Size
1.25 inches and 2 inches
Eye Relief
19mm
Lens Elements
6
Lens Groups
4
Weight
13.8 oz (390 g)
Maximum Width
59.5mm
Field Stop Diameter
32mm
Coatings
Phantom Group Multi-Coated
Know before you buy
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