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Baader Hyperion Aspheric 31mm eyepiece

Product code: BP2454631

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Quick Overview

Hyperion Aspheric are long focus version with 50.8mm barrel and 72° apparent field of the famous Hyperion eyepieces! In addition, the use of aspherical optical system allows an excellent correction of all types of distortion thus providing a high image quality throughout the field. The unique optical design allows to maintain a compact size and a low weight (also half compared to widefield eyepieces from other manufacturers).

Availability: In stock in Italy headquarters

Regular Price: €175.00

Special Price €165.00

22% tax incl
if you pay by bank transfer €160.05


Main specifications:

2" diameter 2" with 48mm thread for 2" filters
72° apparent field of view
Great correction up to the edges
Low dimension and weight thanks to the use of aspherical lens
Sealed lens with O-Ring to prevent the ingress of dust or moisture
High eye relief
Low parallax effect
Phantom Coating that guarantees absence of diffused light and ghost reflections
With M43 and SP54 threads
Used in projection and afocal photography, through extensive Hyperion adapters

Hyperion Aspheric eyepieces are also equipped with a 31.8mm adapter (which reduces the apparent field to about 45°) for use with bino viewers or with 31,8mm focusers.


Specifications for photographic use:

With or without the removable group of negative lenses, the Hyperion eyepiece is a great and sharp projection system. For photography in afocal mode, S54 and M43x0.75 threads have been incorporated in the eyepiece that, thanks to the use of Baader adapters, allow virtually any photographic camera or camcorder connect without vignetting. There is also a M43/T2 photographic adapter to allow the attachment of DSLR camera with T2 ring. The robust construction of the Hyperion eyepieces allows you to support heavy loads up to 3 kg.

Technical specifications

Type Wide-field
Diameter (mm) 50,8mm
Apparent field of view 72°
Eye Relief (mm) 17
Optical Coatings Fully Multi Coated
Focal lenght (mm) 31

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