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Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars — main product image
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars
Nikon

Nikon 7485 PROSTAFF 10x25 Waterproof Binoculars

★★★★★4.5 (80 reviews)

Compact, waterproof 10x25 binoculars with multicoated aspherical lenses and 15.9 mm eye relief for all-weather outdoor use.

$166.95*
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*Price sourced from Amazon.com. Last updated:Jun 03, 2026.Price and availability are subject to change.

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Overview

The Nikon 7485 PROSTAFF 10x25 binoculars deliver impressive optical performance in a body compact enough to slip into a jacket pocket. The multilayer-coated aspherical lenses are the standout feature, providing sharp, high-contrast images with faithful color reproduction and minimal distortion across the field of view. Anti-reflective coatings on all air-to-glass surfaces maximize light transmission, ensuring that the 25 mm objective lenses gather and deliver as much brightness as physically possible for their size. The 10x magnification brings distant subjects in close, making these binoculars well-suited for birding, stadium events, and general nature observation.

Built for real-world outdoor use, the PROSTAFF 10x25 features a fully waterproof and fogproof design achieved through O-ring sealing and nitrogen gas filling. The rubber-armored exterior absorbs impacts and provides a confident, non-slip grip even in wet conditions. A smooth central focus knob allows quick adjustments for tracking subjects at varying distances, while the 15.9 mm eye relief ensures a comfortable, full field of view for eyeglass wearers. At just 12.9 ounces and measuring 4 x 4.5 inches, these binoculars strike an effective balance between optical reach and portability, making them a practical choice for anyone who wants capable optics without the bulk of full-size binoculars.

Key Features

ALL-TERRAIN PERFORMANCE - Engineered for adventure, Nikon ProStaff Binocular offers crystal-clear vision and precision in any environment; As part of the ATB Series, it combines rugged construction and full weather sealing for ultimate dependability

MULTICOATED OPTICS - Featuring multilayer-coated aspherical lenses, these binoculars deliver sharp, high-contrast, true-to-color views; Advanced anti-reflective coatings maximize brightness for crisp detail in forests, fields, or low-light conditions

WATERPROOF, FOGPROOF, FIELD-READY DESIGN - Nitrogen-filled and O-ring sealed for ultimate moisture resistance, these birdwatching binoculars stay clear through rain, fog & temperature swings, ensuring dependable vision in unpredictable outdoor scenarios

DURABLE BUILD, SECURE NON-SLIP GRIP - A tough rubber-armored coating absorbs shocks and provides a steady, non-slip hold even when wet; Lightweight yet resilient, the ProStaff nature viewing binoculars are built for rugged treks and extended use

COMFORTABLE VIEWING, FAST FOCUS CONTROL - With over 15mm of eye relief, this field observation optic delivers a full field of view, even for eyeglass wearers; The smooth central focus knob allows quick adjustments, ensuring you never miss a moment

Specifications

Magnification
10x
Objective Diameter
25 mm
Prism Type
Porro
Focusing System
Central Focus
Angular FOV (Real)
5°
Angular FOV (Apparent)
47.2°
FOV at 1,000 yds
262 ft
Close Focus Distance
9.2 ft
Exit Pupil
2.5 mm
Relative Brightness
6.3
Eye Relief
15.9 mm
Interpupillary Distance
56–72 mm
Size (L x W)
4 x 4.5 in
Weight
12.9 oz
Weather Sealing
Waterproof, Fogproof (Nitrogen-filled, O-ring sealed)

Pros & Cons

👍 Pros

  • Multicoated aspherical lenses deliver sharp, high-contrast views with accurate color reproduction.
  • Waterproof and fogproof construction with nitrogen filling handles rain, humidity, and temperature swings.
  • Compact 4 x 4.5 inch size and 12.9 oz weight make them highly portable for travel and hiking.
  • Generous 15.9 mm eye relief accommodates comfortable viewing with or without eyeglasses.
  • Rubber-armored body provides shock absorption and a secure non-slip grip in wet conditions.

👎 Cons

  • 10x magnification with a 25 mm objective yields a small 2.5 mm exit pupil, limiting low-light performance.
  • 262-foot field of view at 1,000 yards is narrower than lower-magnification compact binoculars, making it harder to locate moving subjects.
  • 9.2-foot minimum close focus distance is not ideal for close-range nature observation such as butterflies or insects.
  • Porro prism design is slightly bulkier than roof prism alternatives in the same compact class.
  • Relative brightness of 6.3 means noticeable image dimming during dawn, dusk, or heavily shaded conditions.

Frequently Asked Questions

Yes, with 15.9 mm of eye relief, the PROSTAFF 10x25 provides a full field of view for users wearing eyeglasses without needing to remove them.
The minimum close focus distance is 9.2 feet (approximately 2.8 meters), which is suitable for most outdoor viewing but may limit use for very close-range observation.
The PROSTAFF 10x25 uses O-ring seals to prevent moisture intrusion and is filled with nitrogen gas to prevent internal fogging during temperature changes and humid conditions.
These binoculars use a Porro prism design, which provides good depth perception and a wider apparent field of view compared to similarly priced roof prism models.
They measure just 4 x 4.5 inches and weigh 12.9 ounces, making them pocket-friendly and easy to carry on hikes, trips, or sporting events.

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