Nikon Introduces the PROSTAFF 3 Fieldscope – Lightweight and Compact for Easy Birdwatching
February 5, 2013
Nikon Vision Co., Ltd., a subsidiary of Nikon Corporation, is pleased to announce the release of the PROSTAFF 3, a lightweight and compact Fieldscope with an excellent portable design that facilitates relaxed, easy and agile birdwatching.
The PROSTAFF 3's predecessor is the Spotter XL II, a popular entry-model Fieldscope for nature observation activities such as birdwatching. The PROSTAFF 3 Fieldscope has the same bright and clear field of view of the earlier model, while its lightweight design further enhances usability. Its airtight, waterproof structure and shock-resistant rubber armoring ensure superbly reliable durability even under severe conditions.
The PROSTAFF 3 Fieldscope comes with a compact tripod and carrying case included, making it an even more convenient entry model for easy nature watching.
Key Features
- Compact, lightweight and sleek design
- All lenses and prisms are multilayer-coated for brighter images
- 16-48x zoom eyepiece integrated
- Long eye relief (19mm at 16x)
- Rubber armoring
- Waterproof (up to 1m/3.3 ft. for 10 minutes) and fog-free with nitrogen gas
- Comes with a compact tripod and a carrying case
Specifications
PROSTAFF 3 Fieldscope | |
---|---|
Magnification (x) | 16-48 |
Objective diameter (mm) | 60 |
Angular field of view (Real/degree) | 2.3* |
Angular field of view (Apparent/degree)** | 35.6* |
Field of view at 1,000m (m) | 40* |
Exit pupil (mm) | 3.8* |
Relative brightness | 14.4* |
Eye relief (mm) | 19.0* |
Close focusing distance (m) | 10.0 |
Length x Width (mm) | 313 x 74 |
Weight (g) | 620 |
- * When minimum magnification (16x) is selected.
- **The apparent field of view is calculated from the following formula based on ISO14132-1:2002
tan ω' = Γ x tan ω (Apparent field of view: 2ω',
Magnification: Γ, Real field of view: 2ω)
- The information is current as of the date of publication. It is subject to change without notice.