A Guide to Marine Binoculars
Designed for both astronomical and terrestrial use, Pentax's 12x50 SP S-Series WP Binoculars can be used with confidence in all weather and conditions. The large oversized 50mm objectives are fully multicoated to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user's eyes for exceptional low-light capabilities, and their high 12x magnification 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 much as 3.3'. The binoculars sport a generous 20mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images and effect night adjusted vision.
Christopher Witt
4 years ago
Todd Vorenkamp
5 years ago
Joseph Albanese
5 years ago
Christopher Witt
11 months ago
User Manual
1.7 MB
Optical Performance
12x magnification
50mm objective lenses
BAK4 Porro prism optical path
Anti-reflection fully multicoated optics
220.5' field of view at 1000 yards
50° angle of view
Use and Handling
Closed bridge configuration
Large knurled center focus wheel
Right-eye diopter adjustment
20mm long eye relief, 4.2mm exit pupil
Fold-down rubber eyecups seal against ocular cavity and block stray peripheral light
Construction Details
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
Tripod mountable with optional adapter
- Designed for both astronomical and terrestrial use, Pentax's 12x50 SP S-Series WP Binoculars can be used with confidence in all weather and conditions. The large oversized 50mm objectives are fully multicoated to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user's eyes for exceptional low-light capabilities, and their high 12x magnification 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 much as 3.3'. The binoculars sport a generous 20mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images and effect night adjusted vision.