The 8mm LVW is world renowned as one of the best High Powered multi-purpose eyepieces available today . Rare-Earth Lanthanum Glass Magnification; 2000mm=250X 1000mm=125X 500mm=62.5XDesign; 8 Elements in 5 Groups; 20mm Eye-Relief; 65deg Apparent Field of View; 1.25Lbs , Boxed 5.5 x 2.5 x 2.5 inches
