Nikon 8×25 ProStaff ATB Binoculars are equipped with space-saving BAK4 reverse-Porro prisms, a multi-coated optical path, and aspherical eyepiece lenses. These features work together to produce clear and crisp high-contrast views with accurate color rendition. Nikon’s proprietary Eco-Glass optics are made of environmentally friendly lenses and prisms that don’t contain lead or arsenic. Complementing the image quality, the optical tubes are nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging, and the housing is wrapped in a textured rubber armor that provides a slip-resistant grip—especially in cold or wet weather. Weighing in at just 12.5 ounces and measuring a mere 4.5 inches long, the ProStaff ATB can easily fit in most packs, pockets, or purses without adding excessive bulk to slow you down.
Optical Performance
Moderate 8x magnification brings subjects in close while producing a wider exit pupil and wider field of view versus high-power models
25mm objective lenses help to maintain a slim form factor while gathering more light than smaller models
Reverse-Porro prism light path produces a compact housing with a rich depth of field
BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion
Aspherical eyepiece lenses correct spherical aberration to produce clear and crisp images, with reduced edge distortion and astigmatism
Anti-reflection multi-coated optics improve light transmission, clarity, contrast, and color rendition
330-foot field of view at 1000 yards
Use and Handling
Large center focusing wheel is easy to manipulate, even when wearing gloves
56-72mm interpupillary adjustment range
Twist-up rubber eyecups for comfortable use with or without eyecups
Comfortable 15.5mm eye relief helps to reduce eyestrain and improve viewing comfort during long glassing sessions
3.1mm exit pupil
Construction Details
Ecologically friendly Eco-glass is made without lead or arsenic
Compact 4.5×4″ form factor
Textured rubber armor protects housing while providing a secure slip-resistant grip
Light 12.5-ounce weight
Nikon 7483 Specs
Prism Type Porro
Performance
Magnification 8x
Objective Lens Diameter 25 mm
Angle of View 6.3° (Actual)
Field of View 330′ @ 1000 yd / 109.6 m @ 1000 m
Minimum Focus Distance 9.2′ / 2.8 m
Exit Pupil Diameter 3.1 mm
Eye Relief 15.5 mm
Interpupillary Adjustment 5.6 to 7.2 cm / 2.2 to 2.8″
Diopter Adjustment Yes
Focus Type Center
Features
Fogproof Yes, Nitrogen Filled
Water Resistance Waterproof
General
Dimensions 4.5 x 3.9″ / 11.4 x 9.9 cm
Weight 12.5 oz / 354.4 g
Packaging Info
Package Weight 1.17 lb
Box Dimensions (LxWxH) 5.3 x 5.25 x 2.75″
