Nikon 8.5x56 Monarch binoculars offers an amazing 6.6mm exit pupil and 43.6 relative brightness index As with the entire Nikon Monarch family, the new 56mm Monarch ATB line is fully waterproof and fog proof and features fully multi coated lenses for maximum light transmission and image quality. The new ATBs incorporate Nikon's exclusive Eco-Glass (made without the use of arsenic or lead) for all lens and prism elements.
Prisms feature phase-correction coatings and high reflection mirror coatings for superior sharpness and resolution. Ergonomic styling, mated with a rubber armored exterior, provides added shock resistance and a firm grip, wet or dry to the 7.8 x 5.7-inch Monarch.
Turn and slide rubber eye cups, complemented by long eye relief, allow the Nikon Monarch binoculars to be used as comfortably by eyeglass wearers as those with uncorrected vision. A large central focus wheel and adjustable diopter make focus easy to achieve and maintain, even while wearing gloves.
Nikon is a precision optical company with worldwide manufacturing, research and marketing capabilities. The Nikon name is equated with extraordinary photographic performance, innovation, precision and optical quality.
More info and prices at Amazon: Nikon 8.5x56 Monarch ATB Binoculars 7517

