Orion 8827 26mm Q70 Wide-Field Telescope Eyepiece A high-quality 26mm focal length super-wide angle 2" ocular at an unbeatable price Super-wide 70 apparent field of view gives you that unforgettable lost in space feeling when looking through the Q70 telescope eyepiece Five internal high-index glass lens elements with multiple anti-reflection coatings deliver sharp, high contrast vistas Luxuriously long 20mm eye relief and parfocal design provide comfort and convenience Beautifully made with machined housings, fold-down rubber eyeguards, and barrels which are internally threaded for use with 2" Orion eyepiece filters