Pentax 8x40 S-Series SP WP Binoculars

BH #PE8X40SPWP • MFR #65871
Pentax 8x40 S-Series SP WP Binoculars
Key Features
  • BAK4 Porro Prism
  • Fully Multicoated Optics
  • Angle of View: 50°
  • Nitrogen-Filled, Water and Fogproof
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Designed for a lifetime of rugged outdoor use Pentax's 8x40 S-Series SP WP Binoculars can be used with confidence in all weather and lighting conditions. 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. 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 coatings ensure bright and clear high-contrast images even in low-light, and their utilitarian 8x magnification brings subjects close while maintaining 363' field of view to preserve situational awareness.
In Stock
$156.00
$26/mo. suggested payments
with 6 Mos. Promo Financing* 
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Pentax SP WP Overview

  • 1Description
  • 2Optical Performance
  • 3Use and Handling
  • 4Construction Details

Designed for a lifetime of rugged outdoor use Pentax's 8x40 S-Series SP WP Binoculars can be used with confidence in all weather and lighting conditions. 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. 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 coatings ensure bright and clear high-contrast images even in low-light, and their utilitarian 8x magnification brings subjects close while maintaining 363' field of view to preserve situational awareness.

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.

Optical Performance

  • 8x magnification
  • 40mm objective lenses
  • BAK4 porro prism optical path
  • Anti-reflection fully multicoated optics
  • 331' 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, 5.0mm 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
UPC: 027075288676

Pentax SP WP Specs

Prism TypePorro
Performance
Magnification8x
Objective Lens Diameter40 mm
Angle of View6.3° (Actual)
Field of View330.7' @ 1000 yd / 110.2 m @ 1000 m
Minimum Focus Distance74.9' / 22.8 m
Exit Pupil Diameter5 mm
Eye Relief20 mm
Diopter AdjustmentYes
Focus TypeCenter
Features
FogproofYes, Nitrogen Filled
Water ResistanceWaterproof
General
Dimensions7 x 5.4 x 3" / 17.8 x 13.7 x 7.6 cm
Weight31.8 oz / 901.5 g
Packaging Info
Package Weight2.63 lb
Box Dimensions (LxWxH)8.55 x 7.35 x 3.9"
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question

The protective covers for the lenses are not tight enough to stay on - what's a good alternative? Also, what would be a good carrying case for these?
Asked by: Anonymous
For the objective lenes I used black electrical tape by cutting a 20 cm long piece, then I used a paper cutter to cut it half as wide and placed those two strips inside the lens covers. Works well, don’t know how long it will last For the eye lens I found some Vortex covers 4x40 or 42 that work really great.
Answered by: Mark
Date published: 2020-01-26
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