The low weight, wide-angle field of view, extreme sharpness of image, absolutely natural colour reproduction and the very short distance for close-up viewing of the Swarovski EL8.5x42 binoculars make them ideal for nature observation. The patented Swarotop and Swarodur coatings on lenses and prisms reduce surface reflections which normally absorb about 6% of the light to as little as 0.2%. The result: the brightest images with greatest contrast.