Nikon Eagleview 8-24x25 Black Zoom Binoculars(25, Black)

Bright, multicoated optics: Multiple layers of anti-reflective compounds offer excellent brightness and resolution. Smooth central focus knob: Fast range of focus for quick viewing. BaK4 high index prisms: Extra-high resolution images thanks to these advanced prisms are available on every Nikon compact binocular. Focusing System Central Focus Magnification 8 - 24 x Objective Diameter 25 mm Angular Field of View (Real) 4.6 ° Angular Field of View (Apparent) 35.6 ° FOV at 1000 yds 241 ft Close Focus Distance 13.1 ft Exit Pupil 3.1 mm Relative Brightness 9.6 @ 8 x Eye Relief 13 mm @ 8 x Size (Length x Width) 4.7 x 4.3 in Weight 12.3 oz Interpupilary Distance 56 - 72 mm Prism Porro