Extra low dispersion multi-treated xd lenses as in the previous series bd xd also the new bd xd ii houses low dispersion lenses for impeccable image quality in terms of contrast, sharpness and color purity. Forget that annoying bluish and yellowish halo around the edges of the objects, forget false color shades and unsharp images with few details, with the bd xd ii series you will have the best of optical quality at an affordable and competitive price. Each kowa xd lens contains in its chemical composition a large amount of mineral fluorite crystals, the best material available today in the world of optics for the correction of chromatic aberration and for the increase of optical quality in terms of contrast and sharpness. Eyepieces and lenses are covered by the "kowa repelling" (kr); kr technology intervenes avoiding grease, fluids and dirt accumulation. on the surface of each treated lens, making cleaning much easier and immediate. Kowa xd ultra low dispersion lenses ensure exceptional performance, while the c3 multi-layer treatment applied to prisms allows greater reflectivity throughout the visible spectrum (400-700nm) than other treatments available on the market. The results are bright, crisp images with very high colour rendering. This is a new technology to increase the reflectivity of the prism. By reducing the amount of lost light, you get a brighter and defined field of view.All optical components are made in Japan with high quality elements and all surfaces are fully multi-treated. These treatments ensure that light transmission, colour definition, brightness and contrast are always at its best. Binoculars therefore produce images with exceptional clarity. Magnesium hull and nitrogen filling binoculars kowa bd xd ii is built to ensure strength and durability over time and in all conditions and environment. The choice of using aluminum alloy for the construction of the hull comes from the need to provide high levels of rigidity and protection while not sacrificing lightness and portability. The rubberized coating allows for additional protection of the binoculars, even a firm and secure grip. By holding a kowa bd xd ii binoculars you will have the feeling of having a top end product in hand. Thanks to the filling of nitrogen gas, the binoculars can be used even in wet and rainy environments: the filling of gas in fact prevents fogging of lenses and prisms as well as guaranteeing together with the hull and the coating the name of "fully waterproof". Focus is knurled and free of obvious games, so focusing the image is simple and immediate. Eyepiece covers allow practical and comfortable use even for glasses wearers and in side light. A wide angle feature that makes the bd xd ii series the new home kowa battle horse in the mid-level world is to be found in the field of view of binoculars. More field of view means more immersion in observation, greater awareness of use in relation to the observed environment, and easier localization of the subject to frame. All of them without sacrificing clarity and optical quality even on the edge of the field. Using kowa bd xd ii binoculars you will have the feeling of having a few meters away from you even subjects very distant while maintaining the broad field feeling typical of naked eye vision.