Coronado CEMAX 12mm Eyepiece (1.25")- for use with Coronado H-alpha Solar Telescopes and filters. 1.25" Barrel Size. Specifically designed for use at H-alpha (or Ha) wavelengths, this specialty eyepiece uses optimized coatings to enhance contrast, minimize glare and also affords excellent contrast for planetary viewing. With caps. Please note that this eyepiece is NOT a filter and for Solar observing must be used in conjunction with a Coronado Ha Solar Telescope or telescope with a Coronado filter set appropriately and safely mounted. Features 20mm eye relief, 52° field of view, and rubber eye guard. Availability: Usually ships the next business day CEMAX12 888.291.6577 Located in Saint Augustine, FL 32095 By faith we understand that the universe was created by God's command, so that what is seen has been made from things that are not visible Copyright (R) 2017 SmartAstronomy, All rights reserved.