PRODUCT FEATURES
- Phase-Corrected BAK4 Roof Prisms
- Fully Multicoated Optics
- Angle of View: 50°
- Nitrogen-Filled, Water and Fogproof
- Closed Bridge Configuration
- Reinforced Polycarbonate Housing
- Centre Focusing
- Twist-Up Eyecups
OVERVIEW
Pentax's 9x28 AD WP Binocular features an exciting transitional magnification that produces an enhanced viewing experience over a lower power without the visible hand-shake often associated with higher magnifications. The BAK4 roof prisms are phase-corrected to improve image contrast and enhance colour rendition. All of the optics are anti-reflection fully multicoated to maximize light transmission to produce the brightest views possible.
To help cut weight, the housing is made of corrosion and impact-resistant fibreglass reinforced polycarbonate polymer. It is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature swings can cause which can make the optical components move out of collimation over time. Its optical tubes are nitrogen-filled and O-ring sealed so they can are submersible to 3.3', as well as fogproof in all weather conditions.
Optical Performance
- 9x magnification
- 28mm objective lenses
- BAK4 roof prisms
- Phase corrected prism coatings enhance contrast and improve colour rendition
- Anti-reflection fully multicoated optics
- 323.4' field of view at 1000 yards
- 50° wide angle of view
Use and Handling
- Open bridge configuration reduces weight and provides larger gripping area
- Knurled centre focusing wheel
- Twist-up eyecups for use with or without eye wear
- 18mm eye relief, 3.1mm exit pupil
- Tripod mountable with optional adapter
Construction Details
- Lightweight fibreglass reinforced polycarbonate housing
- Housing is corrosion, temperature and impact-resistant
- Nitrogen-filled for fogproof performance, submersible to 3.3' (1m)
- Rubberised armouring protects against impacts and provides slip-resistant grip
- Inner focusing mechanism provides smooth focus while preserving waterproof seals
- Weighs in at just 12.8 oz
SPECIFICATIONS
Prism Type Roof
Magnification 9x
Objective Lens Diameter 28 mm
Angle of View 5.6° (actual)
Field-of-View 323.4' @ 1000 yd / 107.37 m @ 1000 m
Minimum Focus Distance 9.84' / 3 m
Exit Pupil Diameter 3.1 mm
Eye Relief 18 mm
Focus Type Centre
Tripod Mount Yes (Adapter Optional)
Dimensions 4.6 x 4.5 x 1.7" / 11.68 x 11.43 x 4.32 cm
Weight 12.8 oz / 363 g