NIKON Premier 10x42 Black

Phase-correction: Enhances resolution for excellent detail.
Nikon’s exclusive field flattener and eyepiece design: For remarkably sharp, clear viewing.
Quick, central focus knob: For fast subject acquisition.
Sturdy, die-cast magnesium-alloy body: Cuts weight without sacrificing durability.
Waterproof/fogproof: Nitrogen filled and O-ring sealed.
Silver coated prisms: High-reflection silver coating on the prism surface for the brightest images.
Fully multicoated optics: Multiple layers of anti-reflective compounds on every glass surface for bright, vivid sight pictures.
Durable and protective, rubber-armored coating: Provides a non-slip grip, wet or dry.
Turn-and-slide rubber eyecups: With multi-click adjustments are extremely eyeglass-friendly.

Features:
Focusing System: Central Focus
Magnification: 10 x
Objective Diameter: 42 mm
Angular Field of View (Real): 6 °
Angular Field of View (Apparent): 55.3 °
FOV at 1000 yds: 314 ft
Close Focus Distance: 9.8 ft
Exit Pupil: 4.2 mm
Relative Brightness: 17.6
Eye Relief: 18.5 mm
Size (Length x Width): 6.2 x 5.5 in
Weight: 27.9 oz
Interpupilary Distance: 56 - 72 mm
Phase Coating: Yes
Waterproof/Fogproof: Yes
Prism: Roof
Manufactured responsibly with lead- and arsenic-free Eco-Glass