Nikon’s line of Monarch M5 Binoculars deliver superior optical performance, and come packed with new and exclusive features. The come outfitted with Nikon’s own ED glass, which greatly mitigates chromatic aberration, and the dielectric and highly-reflective multilayer prism coatings ensure outstanding light transmission. Other features of the Monarch M5 Binoculars include a tough rubber armor exterior for superior shock resistance and a positive grip even in wet conditions. In addition, the Monarch M5 is equipped with an O-ring seal and are nitrogen filled to keep them fog-free. Features of the Nikon Monarch M5 Binoculars: Nikon ED glassLocking diopter adjustmentRubber armorDielectric High-Reflective CoatingPhase-correction coated prisms Nikon MONARCH M5 8x42 Binoculars 16767