Celestron 93366 Ultima LX Series 1.25 Inch -2 Inch 5mm 70 Degree Wide FOV - For high and low magnifications Extendible twist-up eyecups - Good for eyeglass wearers Parfocal eyepiece - Little or no focusing needed when changing from low to high power Threaded barrels - Accept 1-1/4" or 2" Celestron thread-in filters Shock resistent rubber covering - Scratch and dent resistent