BARSKA’s Naturescape ED Series models take spotting scope optics to a higher level. Fully multi-coated premium ED (Extra Low Dispersion) glass provide you with views of exceptional clarity and resolution. Compared to conventional achromatic lenses, ED glass lenses minimize chromatic aberration and other forms of distortion resulting in higher resolution and contrast. 100% waterproof and fogproof, Naturescape ED spotters are at home in the most demanding environments and are ruggedly built to withstand the effects of movement from one location to another. Naturescape ED spotters include a deluxe hard carrying case and BARSKA’s Limited Lifetime Warranty.