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Nikon ProStaff 8x25 All-Terrain Binoculars

Item #: 91491 NIKON

Out of stock. Expected delivery in 1 to 3 weeks.

The CurtisDifference

Our CommitmentTo You

Waterproof, fogproof, and shockproof, these compact binoculars are nitrogen-filled and o-ring sealed for superior durability and excellent optical performance. The aspherical eyepiece lenses offer a clear, distortion-free field of view and long eye relief for eyeglass wearers. The exclusive Eco-Glass lenses and prisms are lighter than typical optical glass and also provide outstanding viewing performance. Other features include turn-and-slide eyecups and a rubber armored polycarbonate body for a sure grip.

  • Multilayer-coated aspherical lenses for bright, sharp images to the lens periphery
  • O-ring sealed and nitrogen-purged for total reliability against thermal shock
  • Ergonomic rubber body covering provides a comfortable, non-slip grip, wet or dry
  • Provides over 15mm of eye relief - making them perfect for eyeglass wearers
  • Smooth central focus knob
  • Nikon Limited Lifetime Warranty


  • Magnification: 8x
  • Objective Diameter: 25mm
  • Porro Prism
  • Angular Field of View (Real): 6.3°
  • Angular Field of View (Apparent): 47.5°
  • FOV at 1000 yds: 330 ft.
  • Close Focus Distance: 9.2 ft.
  • Exit Pupil: 3.1mm
  • Relative Brightness: 9.6
  • Eye Relief: 15.5mm
  • Dimension: 3.9: x 4.5"
  • Weight: 12.5 oz.
  • Interpupillary Distance: 56- 72mm
  • Waterproof/Fogproof