The Nikon ProStaff binoculars have ‘successful hunting' written all over them. These little beauties feature the same waterproof, fogproof and shockproof performance as their big brothers in the Monarch and Action Extreme series. Rubber armored for a sure grip, the Nikon ProStaff integrates bright, multicoated lenses, BaK4 high index prisms and turn and slide eyecups. Magnification: 9x Objective Diameter: 25mm Angular Field of View: Real 5.6/Apparent 50.4 Field of View @ 1000 yds: 293ft Close Ranging Distance: 9.1yds Exit Pupil: 2.8mm Relative Brightness: 7.7 Eye Relief: 15.8mm Size: 4x4.5 Weight: 12.6oz