Nikon Monarch 5 10X42 Binoculars 7577 All MONARCH 5 binoculars are now built with Nikon's premium ED (Extra-Low Dispersion) Glass for a sharper, clearer and more brilliant field of view. Almost an ounce lighter than its predecessor, the new MONARCH 5 is even easier to bring along on your next adventure. Fully Multicoated Eco-Glass Lenses provide a high light transmittance across the entire visible light spectrum. Apparent FOV: 51.3 It is equipped with user-friendly features such as Turn-and-Slide Rubber Eyecups, a Smooth Central Focus Knob and Flip Down Lens Caps. It is equipped with user-friendly features such as Turn-and-Slide Rubber Eyecups, a Smooth Central Focus Knob and Flip Down Lens Caps.