Nikon Monarch HG 10X42 Binocular, Black (16028)

Nikon's field flattener lens system works in conjunctions with MONARCH HG's wide field of view to provide a sharp, clear view to the lens periphery, Nikon engineered the optical system of MONARCH HG around its ED (Extra-low Dispersion) glass, Locking diopter control maintains your personal setting until you want to change it