Nikon Monarch 7 10x30 Binoculars, Black - 7580 The MONARCH 7 30mm binocular features a new, sophisticated body design that is lighter and more compact. Its improved optical system features 30mm objectives, a wide apparent field of view and Nikon's ED (Extra-low Dispersion) glass lenses. The sharp, crisp views of the MONARCH 7 are now even more portable and more convenient to take with you on your next adventure.