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Questions & Answers
what is the difference in the 2 models 8x40 Expert Answer

MPN: 65871 is Nitrogen-Filled, Waterproof and Fogproof.

by Carly R., Gear Expert, January 22, 2018
What is the eye relief on these binoculars Expert Answer

They have a 13mm eye relief.

by Carly R., Gear Expert, January 17, 2018

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Product Info for Pentax S-Series Superior SP 8x40 Full Size Binocular

With Pentax S-Series Superior SP 8x40 Full Size Binocular, you will see the fine details of nature like never before. Pentax SP series binoculars feature multi-layer coatings for enhanced light transmission and O-Coating for spherical distortion reduction. And their large objective lens gathers a tremendous amount of light to ensure you can see even in low light conditions. Pentax 's porro prism binocular's ensure a steady image and sharp focus, even in difficult weather conditions (JIS Class 5). And their waterproof and nitrogen-filled construction makes them able to handle the most extreme weather conditions (submersible to 1m). These Pentax SP Binoculars feature a rigid body construction that makes them extremely rugged to maintain optical alignment. And they are filled to within 1 percent tolerance. So, they deliver consistent performance, even after years of use. Pentax offers the industry's most comprehensive binocular protection program. Whether you need a waterproof binocular or a barometric altimeter, Pentax has you covered. Pentax S-Series Superior SP 8x40 Waterproof & Fogproof Binoculars meet ISO standards for performance and are backed by the company's limited lifetime warranty. Pentax S-Series Superior SP 8x40 Full Size Binoculars are the only premium grade binoculars that Pentax sells.image

Specifications for Pentax S-Series Superior SP 8x40 Full Size Binocular:

Manufacturer: Pentax
Color: Black
Magnification: 8 x
Objective Lens Diameter: 40 mm
Prism System: Porro
Prism Material: BAK4
Eye Relief: 13 mm
Exit Pupil: 5 mm
Field of View, Linear: 143.5 m at 1000 m, 430 ft at 1000 yds
Field of View, Angle: 8.2 degrees
Optical Coating: Fully Multi-Coated
Binoculars Focus System: Center Focus
Twilight Factor: 25
Interpupillary Distance: 57 - 72 mm
Close Focus: 11.5 ft
Diopter Adjustment Range: -2 - 2 dpt
Weather Resistance: Yes
Water Resistance Level: Waterproof
Length: 5.4 in
Weight: 31.75 oz
Finish: Black
Package Type: Box
Included Accessories: Eyepiece lens caps, Case, Neck Strap
Magnification Type: Fixed
Size Class: Full Size

Features of Pentax S-Series Superior SP 8x40 Full Size Binocular

  • New fully multi-coated optics
  • Durable aluminum die cast body
  • For spectacle wearers: soft rubber eyecups that can easily be folded back
  • Click-stop diopter adjustment

Package Contents:

  • Pentax S-Series Superior SP 8x40 Full Size Binocular

Pentax S-Series Superior SP 8x40 Full Size Binocular Orderable Models

List of Orderable Models

  • Pentax S-Series Superior SP 8x40mm WP Full Size Porro Prism Binocular, Black, 65871 , MPN: 65871 , UPC: 027075288676 , Code: PX-BI-SSSP8-65871
  • Pentax S-Series Superior SP 8x40mm Full Size Porro Prism Binocular, Black 65902 , MPN: 65902 , UPC: 027075288720 , Code: PX-BI-SSSP8-65902
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