Pentax designed the 10x42 S-Series SD WP Binoculars 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 color rendition in even low light. Its 10x magnification, 60° angle of view, and 315' field of view at 1000 yards provides an immersive observation experience.
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 deep as 3.3'. The binoculars sport a generous 18mm eye relief, and 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
10x magnification
42mm objective lenses
BAK4 roof prism optical path
Phase-corrected prism coatings virtually eliminate chromatic aberrations for increased contrast and true color rendition
Anti-reflection fully multicoated optics
315.0' field of view at 1000 yards
60° angle of view
Use and Handling
Closed bridge configuration
Large knurled center focus wheel
Right-eye diopter adjustment
18mm eye relief, 4.2mm exit pupil
Twist-up eyecups for use with our without eye wear
Tripod mountable with optional adapter
Construction
Rubberized armoring 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
