Baader Planetarium 17mm Hyperion Modular Eyepiece #HYP-17

Consisting of 8 elements in 5 groups (3.5 mm - 21 mm), the Hyperion optical design delivers outstanding sharpness and color correction over a 68-degree wide apparent field (65 degrees for the 21 mm) The Hyperion optical design has been chosen to deliver a exceptionally comfortable view, thanks to its 20 mm of eye-relief, large eye lens, and a pupil-free of the kidney-beaning and blackouts common in many wide field eyepieces The new 24 mm uses a different optical design and delivers outstanding performance over its 68deg. wide apparent field. It is totally free of blackouts & other annoying exit pupil behaviors, delivers long eye relief (17 mm), virtually zero distortion, and is sharp to the edge even in fast telescopes Its flat focal plane is particularly suited to very fast newtonians that use coma correctors. The 29 mm field stop makes the 24 mm Hyperion the widest 24 mm eyepiece. The 24 mm Hyperion is also the smallest and lightest of the Hyperion