Featuring ashperical multicoated lenses and BaK4 high index Porro style prisms - Turn-and-slide rubber eyecups - Ergonomic lightweight design - Durable and protective rubber-armored coating - Manufactured responsibly with lead and arsenic-free Eco-Glass - Focusing System: Central Focus - Magnification: 8 x - Objective Diameter: 42 mm - Angular Field of View (Real): 8 - Angular Field of View (Apparent): 58.4 - FOV at 1000 yds: 420 ft - Close Focus Distance: 16.4 ft - Exit Pupil: 5.3 mm - Relative Brightness: 12 - Eye Relief: 12 mm - Size (Length x Width): 5.7 x 7.3 in - Weight: 26.8 oz - Prism: Porro