The Baader Hyperion Zoom 2.25x Barlow lens is an anastigmatic flatfield triplet Barlow for use with the Hyperion Zoom eyepiece, converting it into a high power 3.5 - 10.5mm zoom lens. Its modular design allows it to be used in a variety of ways for both visual and photographic applications.
The finest glasses, optical design and lens polish quality are optimized for the highest magnification while still giving the largest apparent field of view. All Hyperion eyepieces use high quality Phantom group-coatings for maximum contrast and zero internal reflections.
The Hyperion Zoom 2.25x Barlow mounts directly onto every Baader 8 - 24mm Hyperion Zoom eyepiece with the included A adapter, as well as any eyepiece with a 1.25" filter thread. The included T2 adapter allows it to be used photographically.