Index matched for perfect optical performance with their Hyperion 8-24mm Zoom eyepiece for improved viewing and imaging, the Alpine Astronomical Baader Hyperion Zoom 2.25x Barlow Lens effectively increases the focal length of the eyepiece through the entire zoom range to boost the magnifications without affecting the eye relief.
Built with a triplet air-spaced lens configuration and treated with Phantom Coating Group multi-coatings, the Barlow delivers a bright and flat field of view from edge to edge without astigmatism. The interior of the housing is baffled and blackened to catch stray and diffracted light for improved contrast and resolution.
The Barlow is engineered with a modular body to add versatility to how it can be utilized. When used with the companion zoom eyepiece, the Barlow simply screws onto the eyepiece's filter threads for a secure and seamless fit. An included T-mount accepts standard optional T-rings for direct connection to cameras and imaging systems for projection astrophotography. Using the same T-mount, users can install an optional 1.25" ClickLock adapter for fast eyepiece changes. It can also be used with other 1.25" eyepieces as a conventional 2.25x Barlow by screwing it into the eyepiece's filter threads.