BAK4 Porro Prisms, Fully Multicoated Optics, Angle of View: 56°
Our Price $309.00


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Designed for both astronomical and terrestrial use, Pentax 's 16x50 S-Series SP Binocular features large oversized fully multicoated 50mm objectives 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 16x magnification provides an immersive observation experience whether users are bird watching or comet hunting.

The binocular sports a generous 13mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images. Its over-sized objectives add weight and bias the centre of gravity forward making user fatigue a concern and hand-shake a possibility, so to aid long observation sessions the binocular can be mounted on a tripod using an optional adapter.

Key Features

Optical Performance
  • 16x magnification
  • 50mm objective lenses
  • BAK4 porro prism optical path
  • Anti-reflection fully multicoated optics
  • 183.8'' field of view at 1000 yards
  • 56° angle of view
Use and Handling
  • Closed bridge configuration
  • Large knurled centre focus wheel
  • Right-eye dioptre adjustment
  • 13mm eye relief, 3.1mm 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
  • Tripod mountable with optional adapter

Specifications

Prism TypePorro
Magnification16x
Objective Lens Diameter50mm
Angle of View3.5° (actual)
Field-of-View183.8' @ 1000 yd / 61.02 m @ 1000 m
Minimum Focus Distance34.0' / 10.36 m
Exit Pupil Diameter3.1  mm
Eye Relief13  mm
Interpupillary AdjustmentNot Specified By Manufacturer
Dioptric CorrectionNot Specified By Manufacturer
Focus TypeCentre
Tripod MountYes (Adapter Optional)
Dimensions7.8 x 6.5 x 2.3" / 19.81 x 16.51 x 5.84  cm
Weight32 oz / 907.20 g
Product:
Pentax 16x50 S-Series SP Binocular
Manufacturer:
Pentax
Model:
65905
SKU:
65905
RM Product #:
32159