Eyepiece Beta Hyperion 8mm 2"/1.25" 68° apparent field

Beta Hyperion 8mm eyepiece with 2"/1.25" adapter provides an 8 mm focal length and a 68° apparent field of view designed for general-purpose visual astronomy. The eyepiece is supplied with a removable adapter that fits both 2-inch and 1.25-inch focusers, allowing use with a wide range of telescopes. Its multi-element optical design and solid mechanical construction aim to deliver good contrast and edge sharpness for planetary views and many deep-sky objects, while remaining compatible with visual observing and astrophotography workflows when appropriate adapters are used.

Advantages

The eyepiece combines a relatively short 8 mm focal length with a wide 68° apparent field, producing higher magnification without an excessively narrow field of view. The included 2"/1.25" adapter increases compatibility with different telescope focusers. Multi-element optics reduce aberrations and help maintain contrast across the field. The mechanical build is durable and suitable for regular field use.

Suitable for

• Planetary and lunar observing at medium–high magnifications
• Compact wide-field views of brighter deep-sky objects
• Use with telescopes that accept 2" or 1.25" eyepieces
• Visual observing sessions and entry-level astrophotography with appropriate adapters

Key specifications

• Focal length: 8 mm
• Apparent field of view: 68°
• Dual compatibility: 2" and 1.25" via removable adapter
• Optical design: multi-element eyepiece for improved edge performance
• Primary use: visual observing; compatible with imaging when adapted

How to use

Insert the eyepiece into the telescope focuser and secure it using the focuser's locking mechanism. Select the 2" or 1.25" configuration by fitting or removing the supplied adapter according to your focuser size. Achieve focus by adjusting the focuser while observing a bright object, then fine-tune position for the best sharpness across the field. For astrophotography, attach any required camera adapters between the eyepiece and imaging train following manufacturer recommendations and confirm backfocus and parfocality.

Usage recommendations

Use the eyepiece on telescopes with sufficient focal length to avoid excessive magnification; pair with lower-power eyepieces or a Barlow to vary magnification. Handle the optics by the barrel and keep lenses clean using appropriate optical cleaning tools. For best results, allow your telescope to reach thermal equilibrium before high-magnification observing.