The Optolyth 15 x 63 Royal binoculars are the top dog for long range observation. This pair of glasses features the CLASSIC rubber armor design, moderate weight, center focus and Ceralin-Plus BROAD BAND fully multicoated optics found in all Royal models. In addition, the 15x63 Royal is the only pair to boast true HD FLUORITE CRYSTAL glass and APO coatings, raising the performance to an unprecedented level. As with all Royal binoculars, they feature the famous Abbe Konig prism system and oversize oculars for a beautiful field of view. The 15x63 has a very comfortable eyerelief, fold down eyecups, comes with a nice neck strap, ocular cover, a case and a tripod adaptor. Exceptional German quality and value.