SD 9×42 WP Roof Prism Binoculars

PRODUCT HIGHLIGHTS

• Phase-Corrected BAK4 Roof Prisms
• Fully Multicoated Optics
• Angle of View: 55°
• Nitrogen-Filled, Water and Fogproof
• Open Bridge Configuration
• Slip-Resistant Rubberised Armouring
• Large Centre Focus Wheel
• Tripod Mountable with Optional Adapter
• Twist-Up Rubber Eyecups

OVERVIEW

Pentax designed the 9×42 SD WP Binocular for a lifetime of rugged outdoor use in all weather and lighting conditions. The 42mm objectives are fully multicoated to reduce reflection and maximize light transmission through the entire optical path. Its roof prisms are phase-corrected to correct for chromatic aberrations ensuring bright and clear high-contrast images with true colour rendition even in low-light. Its 9x magnification brings subjects a bit closer over the more common 8x, but reduces the visible shake often associated with higher magnifications.

Complementing the optical performance are construction details made for the trail. The optical tubes are nitrogen-filled and O-ring sealed for fogproof performance and to make them submersible to as much as 3.3′. An open bridge design cuts weight without sacrificing strength to reduce user fatigue during long glassing sessions. The binocular sports a generous 18mm eye relief and its twist-up eyecups ensure comfortable viewing with or without eye wear. Protective coatings on the exterior lens surfaces repel water, dirt, and oil to keep them clean for unobstructed viewing.

Optical Performance

• 9x magnification
• 42mm objective lenses
• BAK4 roof prism optical path
• Phase-corrected prism coatings virtually eliminate chromatic aberrations for increased contrast and true colour rendition
• Anti-reflection fully multicoated optics
• 320′ field of view at 1000 yards
• 55° angle of view

Use and Handling

• Open bridge configuration
• Large knurled centre focus wheel
• Right-eye diopter adjustment
• 18mm eye relief, 4.7mm exit pupil
• Twist-up eyecups for use with our without eye wear
• Tripod mountable with optional adapter

Construction

• Rubberised armouring protects against impacts and provides slip-resistant grip
• Nitrogen-filled, fogproof and submersible to 3.3′ (1m)
• Internal focusing system helps to maintain waterproof seals
• Dust/water/grease repellent coatings keeps the optical surfaces clean

SPECIFICATIONS

Prism Type Roof
Magnification 9x
Objective Lens Diameter 42 mm
Angle of View 6.1° (actual)
Field-of-View 320.3′ @ 1000 yd / 106.34 m @ 1000 m
Minimum Focus Distance 8.3′ / 2.53 m
Exit Pupil Diameter 4.7 mm
Eye Relief 18 mm
Interpupillary Adjustment Not Specified By Manufacturer
Dioptric Correction Not Specified By Manufacturer
Focus Type Centre
Tripod Mount Yes (Adapter Optional)
Dimensions 5.8 x 5.0 x 2.3″ / 14.73 x 12.70 x 5.84 cm
Weight 23.5 oz / 666.23 g