Pentax 8x40 S-Series SP Binocular

product overview
product overview
  • BAK4 Porro Prism

  • Fully Multicoated Optics

  • Wide-Angle of View: 65.6°

  • Closed Bridge Configuration

  • Slip-Resistant Rubberized Armoring

  • Large Center Focus Wheel

  • Tripod Mountable with Optional Adapter

  • Fold-Down Rubber Eyecups

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Designed to provide an immersive experience for nature and bird watching, Pentax's 8x40 S-Series SP Binocular boasts a wide 65.6° angle of view and porro prisms that produce a rich depth of view. The 40mm objectives are fully multicoated to reduce reflection and maximize light transmission through the entire optical path without making them overly cumbersome for a long day on the trail. The coatings ensure bright and clear high-contrast images even in low-light, and its utilitarian 8x magnification brings subjects close while maintaining wide 430' field of view at 1000 yards to preserve situational awareness. The binocular sports a 13mm eye relief and the fold-down eyecups seal against the ocular cavity to block stray peripheral light which can dim images.


Optical Performance
  • 8x magnification
  • 40mm objective lenses
  • BAK4 porro prism optical path
  • Anti-reflection fully multicoated optics
  • 142.93m field of view at 1000 yards
  • 65.6° wide-angle of view
Use and Handling
  • Closed bridge configuration
  • Large knurled center focus wheel
  • Right-eye diopter adjustment
  • 13mm eye relief, 5.0mm exit pupil
  • Fold-down rubber eyecups seal against ocular cavity and block stray peripheral light
Construction Details
  • Internal focusing system
  • Rubberized armoring protects against impacts and provides slip-resistant grip
  • Tripod mountable with optional adapter
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Prism TypePorro
Objective lens diameter40mm
Angle of View8.2 (actual)
Field of View142.93 m @ 1000 m
Minimum Focus Distance6.04 m
Exit Pupil Diameter5.0 mm
Eye relief13 mm
Focus TypeCenter
Tripod MountYes (Adapter Optional)
Dimensions18.80 x 13.21 x 5.59 cm
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What’s In The Box

Pentax 8x40 S-Series SP Binocular

  • Carrying Case

  • Neck Strap

  • 2 x Objective Lens Caps

  • 2 x Eyepiece Caps

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