Superb light transmission. Impeccable sharpness and clarity. Excellent image quality with unbelievable contrast at the highest magnifications. These are the main traits of the superior ED glass and in the past you would have had to pay a hefty price for that. Not anymore: this model is supremely affordable and is therefore a dream come true for long distance shooters, by virtue of its huge 5x-40x zoom power to go along with an array of truly incomparable features. ED glass 30mm tube Constant long eye relief at all magnifications Compact design with wide field of view Side parallax wheel Exceptional optical performance, with distortion-free resolution Ultra wide band fully multi-coating for high transmission and incredible clarity Hydrophobic lens coating suitable for rainy days High precision locking tactical turrets Sunshade included Engraved reticle