•4 -element premium symmetrical Plossl optical design• Determines telescopes magnification & gives a wider field of view• Blackened lens edges• Fold-down rubber eye cups for comfort of use• Multi-layer coating group on each lens surface to maximise light transmission & contrast The high power Omni eyepiece is a 4 -element premium symmetrical Plossl optical design. The eyepiece determines your telescopes magnification & can give you a wider field of view. Perfect for beginners, it has a multitude of functions for a great price making it suitable for those of you who are just starting up your telescope & accessories collection. The features of this eyepiece include blackened lens edges to minimize internal reflection & maximize contrast & fold-down rubber eye cups for comfort of use & rubberized grips come as standard as well. The eyepiece has multi-layer coating group on each lens surface to maximise light transmission & contrast, & each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures that use reflective surfaces. The Omni 9mm Plossl eyepiece from Celestron would make a brilliant addition to anyone’s telescope kit bag.