Baader Planetarium 13mm Hyperion Telescope Eyepiece - HYP-13

Baader Planetarium 13mm Hyperion Telescope Eyepiece   This 13mm Baader Planetarium Hyperion Eyepiece is more than just a pretty face!  With a 68 degree field of view, coatings that rival eyepieces costing hundreds of dollars more, and great eye relief, the Baader Hyperion's are the perfect visual eyepiece, however, their innovative auto-locking 2-inch sleeve supports heavy cameras for afocal projection photography with the appropriate Hyperion T-ring.   Baader Hyperion Multi-Purpose 68 Degree Eyepieces - Great for visual use   All Baader Hyperion eyepieces have an optimal 68-degree apparent field of view, the largest accessible to the stationary human eye. The entire field remains visible despite slight involuntary motions of an observer’s head. The annoying "kidney bean effect", the bane of many ultra wide-field eyepiece designs, is completely absent in the Baader Hyperion. Eight lens elements in five groups provide outstanding sharpness and color correction over the entire field