Nikon Introduces New PROSTAFF 7 Binoculars
June 1, 2011
Nikon Vision Co., Ltd., a subsidiary of Nikon Corporation, is pleased to present two new PROSTAFF 7 models, the 8x42 and 10x42. With fully multilayer-coated lenses and prisms, including phase-correction-coated roof prisms and high-reflection mirror coating prisms, the PROSTAFF 7 binoculars series offers a brighter image and higher resolution. The rubber armoring provides durability and a nonslip grip for comfortable holding.
Positioned between the Monarch and the Sporter EX series, these first PROSTAFF 7 series models deliver higher optical performance at an attractive price.
PROSTAFF 7 8x42
PROSTAFF 7 10x42
Key Features
- All lenses and prisms are multilayer-coated to achieve brighter images.
- Phase-correction-coated roof prisms deliver high resolution.
- High-reflection mirror-coating prisms enhance image brightness.
- High-eyepoint design provides a clear field of view, even for eyeglass wearers.
- Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint.
- Waterproof up to 1 m/3.3 ft for 10 minutes and fog-free with nitrogen gas
- Rubber armoring for shock resistance and a firm, comfortable grip
- Eco-glass optics that are free of lead and arsenic are employed for all lenses and prisms
Nikon PROSTAFF 7 Binoculars Specifications
| PROSTAFF 7 8x42 | PROSTAFF 7 10x42 | |
| Magnification | 8× | 10× |
| Objective diameter | 42 mm | 42 mm |
| Angular field of view (real) | 6.3° | 6.0° |
| Angular field of view (apparent)* | 47.5° | 55.3° |
| Field of view at 1,000 m | 110 m | 105 m |
| Exit pupil | 5.3 mm | 4.2 mm |
| Relative brightness | 28.1 | 17.6 |
| Eye relief | 19.3 mm | 15.4 mm |
| Close focusing distance | 4.0 m | 4.0 m |
| Interpupillary distance adjustment | 56-72 mm | 56-72 mm |
| Length | 175 mm | 172 mm |
| Width | 129 mm | 129 mm |
| Weight | 665 g | 665 g |
- *Nikon has adopted a calculation method based on ISO 14132-1:2002.
tan ω' = Γ x tan ω
Apparent field of view: 2ω'
Real field of view: 2ω
Magnification: Γ
- The information is current as of the date of publication. It is subject to change without notice.