The new Monarch HG 30mm series from Nikon follows in the footsteps of its award-winning 42mm sibling in delivering class-ruling optical performance, unrivaled ruggedness and exceptional handling. They’re engineered throughout to maintain the performance specifications of the original 10 x 42 models, but these new Monarch binoculars do so in a smaller size and are nearly 8oz. lighter. Field of view for the 10x models=362ft.@1,000 yds. Extra-low dispersion glass corrects chromatic aberration that causes color fringing and produces a contrast-rich and high-resolution image, while the magnesium alloy body is lightweight and durable.