Nikon PROSTAFF 5 10x50 Binoculars
- Brand:
- Nikon
- Part no:
- 7572
Image: store.nikon.ca
Where to buy
Specifications
- Magnification
- 10 x
- Objective
- 50 mm
- Waterproof
- Waterproof
- Focus
- Centre
- Fogproof
- Yes
- Field of view at 1000m
- 98 m
- Weight
- 815 g
The Nikon PROSTAFF 5 10x50 (product number 7572) is a central-focus binocular with 10x magnification and 50 mm objective lenses. It is waterproof to 1 m for 10 minutes and filled with nitrogen gas to stay fog-free. The optics are Eco-glass, free of lead and arsenic, with multilayer coatings, and an independent lab test found good BaK-4 prisms. The figures that matter when choosing: a field of view of 98 m at 1,000 m, eye relief of 19.6 mm, close focus of 5.0 m, and a weight of 815 g. The same lab test found the body huge for a 50 mm class binocular, so check it against your stowage space.
Our take
Buy it if you want a sealed, central-focus 10x50 and can live with modest optics. An independent 2015 lab test scored it 55.7% overall, with high chromatic aberration, noticeable distortion and 71.5% transmission, and the reviewer did not recommend it. Skip it if image quality matters most or you want something compact. That test covered 2015 units, so current ones may differ.
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.

