BAK4 Porro Prism, Fully Multicoated Optics, Angle of View: 50°
Our Price $469.00


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Designed for both astronomical and terrestrial use, Pentax 's 12x50 SP S-Series WP Binocular can be used with confidence in all weather and conditions. The large oversized 50mm objectives are fully multicoated to reduce reflection and maximise light transmission through the entire optical path. Utilising 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 maximise the amount of light getting to the user's eyes for exceptional low-light capabilities, and its 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 binocular sports 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.

Key Features

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 centre focus wheel
  • Right-eye dioptre adjustment
  • 20mm long eye relief, 4.2mm exit pupil
  • Fold-down rubber eyecups seal against ocular cavity and block stray peripheral light
Construction Details
  • 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
  • Tripod mountable with optional adapter

Specifications

Prism TypePorro
Magnification12x
Objective Lens Diameter50mm
Angle of View4.2°
Field-of-View220.5' @ 1000 yd / 87.15 m @ 1000 m
Minimum Focus Distance18.2" / .46 m
Exit Pupil Diameter4.2  mm
Eye Relief20  mm
Interpupillary AdjustmentNot Specified By Manufacturer
Dioptric CorrectionNot Specified By Manufacturer
Focus TypeCentre
Tripod MountYes (Adapter Optional)
Dimensions7.2 x 7.0 x 3.1" / 18.29 x 17.78 x 7.87  cm
Weight38.1 oz / 1080.13 g
Product:
Pentax 12x50 S-Series SP WP Binocular
Manufacturer:
Pentax
Model:
65873
SKU:
65873
RM Product #:
32158