Baader Hyperion 17mm 1.25" & 2" Eyepiece

The Baader Hyperion 17mm Eyepiece is a premium wide-angle eyepiece designed for astronomers who want sharp detail, comfortable viewing, and flexible compatibility across different telescope setups. Sitting in the sweet spot between low- and high-power magnification, the 17mm focal length makes this eyepiece an excellent all-rounder for observing the Moon, planets, globular clusters, and brighter deep-sky objects.

Balanced Magnification with a Wide Field of View

Featuring a 68-degree apparent field of view, the Hyperion 17mm delivers an immersive observing experience that feels expansive without being difficult to manage. This wide field helps keep objects in view for longer, making it particularly useful when using Dobsonian or manually tracked telescopes.

High-Contrast Optics with Phantom Group Coatings

Optically, the eyepiece uses an 8-element, 5-group lens design combined with Baader’s advanced Phantom Group multi-coatings. This optical system maximises light transmission while reducing internal reflections, resulting in high contrast, excellent edge performance, and clean, neutral colour rendition. Background skies appear darker, while fine lunar and planetary details remain crisp and well defined.

Comfortable for Extended Observing Sessions

Comfort is a key strength of the Hyperion range, and the 17mm is no exception. With a generous 20mm eye relief, it is well suited for extended observing sessions and remains comfortable for eyeglass wearers. The robust housing ensures stable positioning and smooth handling, even in colder observing conditions.

Dual 1.25" & 2" Compatibility

The dual 1.25-inch and 2-inch barrel configuration allows seamless use across a wide range of telescopes without additional adapters. This flexibility makes the Baader Hyperion 17mm a practical long-term investment as your telescope collection evolves.

Well balanced between magnification, field of view, and optical quality, the Baader Hyperion 17mm 1.25" & 2" Eyepiece is a reliable choice for astronomers seeking a high-performance eyepiece that excels across a wide variety of observing targets.