Key Features
- Phase-Corrected BAK4 Roof Prism
- Fully Multi-Coated Optics
- Nitrogen Filled, Water and Fogproof
- Lightweight Polycarbonate Chassis
- Intuitive Focusing Ring
- Three-Position Twist-Up Eyecup
- Slip-Resistant Green Rubber Armoring
- Lightweight and Compact Design
The green Hawke Optics 8x25 Nature-Trek Monocular features a compact phase-corrected BAK4 roof prism and anti-reflection fully multi-coated optics. These combine to make a versatile and capable optic that produces bright and clear images with accurate color rendition. A moderate 8x power helps to bring distant subjects in for observation without narrowing the field of view and exit pupil too much, and the 25mm objective, coupled with the optical features, makes the Nature-Trek ideally suited for most quick and casual glassing needs.
Complementing the optical performance are construction details that make the monocular durable and comfortable to use. These details start with a lightweight, impact and corrosion-resistant polycarbonate chassis that is protected by green rubberized armor. This armoring is textured to give it a non-slip grip, especially in cold and wet conditions. The optical tube is nitrogen filled and O-ring sealed to be water and fogproof—especially in extreme weather conditions. A simple diopter ring focuser allows the monocular to be quickly and easily focused, and the twist-up eyecup provides comfortable use with or without eyewear.
Optical Performance
- 8x power magnifies view without sacrificing field of view or exit pupil
- Compact 25mm objective lens keeps the form factor small for easier packing and carrying
- Roof prism light path ensures the optical tube remains thin for easier handling
- BAK4 prism glass delivers a round exit pupil and a crisp and clear image with limited edge distortion
- Phase-correcting prism coatings eliminate internal interference to improve clarity and contrast
- Anti-reflection fully multi-coated optics maximize light transmission to produce bright and clear high-contrast images with accurate color and improved resolution
- 356' field of view at 1000 yards
Use and Handling
- Simple and intuitive focusing collar located directly behind eyecup
- Twist-up 3-position click-stop eyecup allows users to fine-tune their perfect eye relief
- 13mm eye relief
- 3.1mm exit pupil
Construction Details
- Lightweight, durable, and corrosion-resistant polycarbonate chassis
- Polycarbonate is temperature resistant and resistant to thermal expansion and contraction
- Nitrogen filled for water and fogproof performance
- Green rubber textured armoring protects chassis from impacts and provides a slip-resistant grip
- Tethered lens covers offer maximum protection with fast deployment without fear of losing them
- Lightweight and compact design for easy carrying, use, and packing
Magnification 8x
Prism Type Roof (BAK4)
Objective Lens Diameter 25 mm
Angle of View 6.8° (Actual)
Field of View 356' @ 1000 yd / 119 m @ 1000 m
Minimum Focus Distance 16.4' / 5 m
Exit Pupil Diameter 3.1 mm
Eye Relief 13 mm
Fogproof Yes
Environmental Resistance Water-Resistant (Unrated)
Tripod Mounting Thread No
Dimensions 4.1 x 1.2" / 10.5 x 3 cm
Weight 5.1 oz / 145 g