With an exceptional field of view and long eye relief, the Alpine Astronomical Baader 72° & Hyperion 36mm Aspheric Eyepiece produces relatively low magnifications on most telescopes, making it ideal for detailed lunar and planetary viewing or wide-field deep sky observations, plus astrophotography. Its 72° & field of view offers a viewing angle that is wider than the human eye, but not so wide that contrast and image brightness are compromised.
The eyepiece lens is made with a unique 6-element/4-group aspheric configuration to virtually eliminate spherical aberration, astigmatism, kidney beaning, and other optical distortions. Phantom Coating Group multi-coatings, blackened lens edges, and internal baffling deliver bright and high-contrast views that are free of scattered and diffracted light. It comes with two barrel sleeves that allow it to fit into 1.25 and 2 drawtubes and accessories. When using the 1.25 barrel, the field of view is reduced to 50 degrees. To limit distraction and improve brightness and contrast, a winged eyecup is included that can fold down for those who require eyeglasses during viewing. To perform all types of astrophotography, including afocal and projection, two sets of T-mount threads are provided-43mm and 54mm-that accept standard camera-specific T-rings to directly attach CCD imaging cameras or DSLRs.
Alpine Astronomical Hyperion Specs
| Focal Length | 36mm |
| Apparent Field of View | 72° (with 2" Barrel) 50° (with 1.25" Barrel) |
| Eye Relief | 19.0 mm |
| Eyepiece Barrel Diameter | 1.25", 2" |
| Field Stop Diameter | 30 mm (with 1.25" Barrel) 45 mm (with 2" Barrel) |
| Dimensions | °: 2.3 x L: 3.3" / °: 59.5 x L: 84.7 mm |
| Weight | 18.3 oz / 520 g |
Packaging Info
| Package Weight | 1.085 lb |
| Box Dimensions (LxWxH) | 7.5 x 2.8 x 2.8" |
In the Box
- Alpine Astronomical Baader 72° Hyperion 36mm Aspheric Eyepiece (1.25"/2")
- 2" Barrel Sleeve
- 1.25" Barrel Sleeve
- Dust Caps
- Folding Eyecup
- 2-Year Manufacturer Warranty
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