Nikon PROSTAFF P7 10x30 Roof Prism Binocular
- Brand:
- Nikon
- Part no:
- 16771
Image: www.nikonusa.com
Where to buy
Specifications
- Magnification
- 10 x
- Objective
- 30 mm
- Waterproof
- Waterproof
- Focus
- Centre
- Fogproof
- Yes
- Field of view at 1000m
- 115 m
- Weight
- 470 g
The Nikon PROSTAFF P7 10x30 (16771) is a roof prism binocular with 10x magnification and 30 mm objective lenses. The prisms are phase-correction coated and focusing is by a central wheel. It weighs 470 g (16.6 oz), which puts it in the compact class. The real field of view is 6.6 degrees, or 115 m at 1,000 m (346 ft at 1,000 yards). Close focus is 2.5 m (8.2 ft), eye relief is 15.4 mm and exit pupil is 3.0 mm. The body is sealed with O-rings and filled with nitrogen, so it is fog-free. Nikon rates it waterproof to 1 m (3.3 ft) for 10 minutes.
Our take
This suits someone who wants a light, compact 10x glass that copes with rain and damp without fogging up. The main limit is the waterproofing: 1 m for 10 minutes covers a shallow dunking, not sustained soaking or submersion. The narrow 6.6 degree field also makes a target harder to find on a moving deck, so we would look at a wider glass for general boat use.
From our buying guide
Steiner calls 7x the marine standard. Higher magnification narrows the field of view and makes the image more sensitive to hand shake.
Check before you buy:
- The water rating comes with its depth and time, since ratings vary widely between makers.
- The maker says what floats, the body or only a strap, since some make no flotation claim at all.
- A stabilised pair has a water rating you're happy with, since not every one carries a waterproof rating.
Other versions
| Photo | Version and size | Price and link |
|---|---|---|
 | Nikon PROSTAFF P3 10x30 Binoculars Magnification: 10 x · Objective: 30 mm · Waterproof: Waterproof | View on Amazonpaid link |
 | Nikon PROSTAFF P3 10x42 Binoculars Magnification: 10 x · Objective: 42 mm · Waterproof: Waterproof | View on Amazonpaid link |
 | Nikon PROSTAFF P3 8x42 binocular (16776) Magnification: 8 x · Objective: 42 mm · Waterproof: Waterproof | View on Amazonpaid link |
 | Nikon PROSTAFF P7 10x42 binoculars Magnification: 10 x · Objective: 42 mm · Waterproof: Waterproof | View on Amazonpaid link |
 | Nikon PROSTAFF P7 8x42 Binoculars (16772) Magnification: 8 x · Objective: 42 mm · Waterproof: Waterproof | View on Amazonpaid link |