Kowa is known to exceed expectations with their line of binoculars and other spotting scopes. Genesis binoculars attain the highest pinnacle of binocular performance. Genesis binoculars features a total of 4 XD lenses in the objective end to reduce chromatic aberration and provide high contrast in the field of view. The prism system in the line of binoculars deliver a wide field of view and edge to edge sharpness with minimal loss of light. This high refractive roof prism offers near total reflectance. When the prism is combined with Kowa's C3 coating, it delivers the clearest and sharpest image. The Kowa brand is a testament to quality recognized by millions of user around the world. Kowa Genesis Features: Waterproof10 year warrantyNitrogen filledRubber armoredXD lensesC3 coatingMagnesium alloy bodyTwist-up eyecupAll-surface mulitcoatingPhase coating Kowa Genesis Prominars XD 8x22mm Binoculars GN22-8