Baader Hyperion 21 mm 31.75mm

21 mm wide-field eyepiece for maximum comfort and contrast

This 21 mm fixed focal-length eyepiece offers excellent viewing comfort thanks to its 68° apparent field of view. Its optical design allows immersive observation while maintaining a sharp, high-contrast image, even at high magnification.

Wide field and comfortable vision

• Fixed focal length : 21 mm
• Apparent field : 68°
• Comfortable viewing even at high magnification
• Immersive image ideal for deep sky and extended objects

High-quality optical coating

Optical surfaces benefit from Zeiss-class Phantom Group cladding, The new, ultra-high-efficiency, high-reflectance, high-transmittance, high-efficiency glass is renowned for its ability to effectively reduce internal reflections and maximize light transmission.

• Virtually eliminates stray reflections
• Maximum image contrast
• High light transmission
• Better visibility of fine details

Dual compatibility with 1.25″ and 2″

The eyepiece is supplied with 1.25-inch and 2-inch adapter sleeves, This allows flexible use with the majority of eyepiece holders and angled eyepieces on the market.

• Universal compatibility
• Easy adaptation to different optical configurations
• Visual or imaging use

Camera and accessory connections

Several integrated threads allow easy adaptation of photographic accessories and the use of different imaging techniques.

• Direct camera adapter
• Compatibility with afocal accessories
• Classic eyepiece projection possible
• Versatile use for observation and photography

Key features

A versatile eyepiece for observation and imaging

With its 21 mmhis 68° field of view and high-end optical coatings, this eyepiece is an excellent choice for astronomers seeking a bright, high-contrast, comfortable image for both visual observation and certain photographic applications.