Baader's Hyperion Modular Eyepieces are some of the finest available amateur wide field of view eyepieces in the world. Built for efficiency and quality to provide a high-end and world-class level of performance to the amateur astronomers of the world, the Hyperion eyepieces have been designed for optimal transmission, contrast, and clarity. By utilizing the best available optical coatings and a superb mechanical design Baader has produced a low cost eyepiece that operates on an entirely different level from competition at a similar price point. A prime quality of these splendid eyepieces is their modular and multi-functional nature. Designed to be usable with a wide variety of telescopes, these eyepieces can be inserted into both 1.25" and 2" compatible focusers. These eyepieces have also taken comfort into consideration, and have been ergonomically constructed with long astronomy sessions in mind from the start with features such as an integrated eye guard and 20mm of eye relief.