ASK AN EXPERTDescription
- Bright, Multicoated Optics for anti-reflection and excellent brightness and resolution
- Smooth Central Focus Knob for fast range of focus
- Durable and Protective Rubber-Armored Coating for a non-slip surface; wet or dry
- Wide Field of View
- Turn & Slide Eyecups and Long Eye Relief (15mm or more) making them perfect for eye glass wearer
- Fully Waterproof and Fogproof: Nitrogen-Filled and O-Ring Sealed
Optics Designed for Brighter Views
PROSTAFF 3S features an optical system created from lead-and-arsenic-free Eco-Glass. Multilayer coatings, which provide high light transmittance across the entire visible light spectrum, are applied for bright images. High-reflectivity silver-alloy mirror coating applied on the mirror surfaces of the prisms for a bright and clear view.
Long Eye Relief
Nikon has manufactured the PROSTAFF 3S binoculars, as well as many other of its optics, with a high-eyepoint design for long eye relief without vignetting. This provides a clear field of view for everyone, even when the user is wearing eyeglasses.
Rubber-Armored Design
PROSTAFF 3S has a rugged rubber-armored coating to provide a non-slip grip, even in the wettest conditions.
MAIN FEATURES AT A GLANCE
PROSTAFF 3S features an optical system created from lead-and-arsenic-free Eco-Glass. Multilayer coatings, which provide high light transmittance across the entire visible light spectrum, are applied for bright images. High-reflectivity silver-alloy mirror coating applied on the mirror surfaces of the prisms for a bright and clear view.
Long Eye Relief
Nikon has manufactured the PROSTAFF 3S binoculars, as well as many other of its optics, with a high-eyepoint design for long eye relief without vignetting. This provides a clear field of view for everyone, even when the user is wearing eyeglasses.
Rubber-Armored Design
PROSTAFF 3S has a rugged rubber-armored coating to provide a non-slip grip, even in the wettest conditions.
MAIN FEATURES AT A GLANCE
- Environmentally friendly Eco-Glass is made without lead or arsenic
- Lightweight and durable fiberglass-reinforced polycarbonate chassis
- Chassis material is temperature resistant, preventing the expansion and contraction that is common with metal, which can cause the optical components to move out of alignment over time and prevent sharp focus
- Textured protective rubber armoring provides a slip-resistant grip, especially in cold and wet weather
- Textured, ergonomically placed palm pads improve grip stability and comfort
- Nitrogen-filled and O-ring sealed to be waterproof and submersible to a depth of 3.3' (1m) for up to 10 minutes and resistant to internal fogging when moving through extreme temperature changes and environmental conditions
- One-piece tethered ocular rainguard protects eyecups from water pooling in them from rain or spraying water when hanging from the neck
- Objective lens caps can be clipped to neck strap to avoid losing them during observation sessions
- Weight: 20 ounces
Warranty Information
| Magnification | 10x |
| Objective Lens Diameter, mm | 42 |
| Eye Relief, mm | 15.7 |
| Exit Pupil, mm | 7.2 |
| Field of View (FOV) @ 100yds, ft | 367.5 |
| Angular Field of View, deg | 7.0° |
| Close Focus Range, ft | 9.8 |
| Interpupillary Distance, mm | 56-72 |
| Dimensions, in | 5.9" x 5.1" x 2.0" |
| Weight, oz | 20.3 |
