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Home  >  Binoculars >  Item # PKB8X40XCF (MFR# 65791)
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8x40 XCF Binoculars - 65791
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Pentax 8x40 XCF Binoculars - 65791

Condition: Brand new, USA Warranty
The XCF series offers outstanding optical performance with multi-coated optical elements, excellent viewing comfort and a fashionable black-finish body.

The XCF series offers outstanding optical performance with multi-coated optical elements, excellent viewing comfort and a fashionable black-finish body encased in a full-body rubber housing. With four different magnifications to choose from, the versatile PENTAX XCF series is ideal for almost any application, from casual viewing to serious observation.


  • The XCF Series features a finely constructed porro-prism design which is available in four high-performance models: 8x40, 10x50, 12x50 and the 16x50.
  • The XCF's full-body rubber housing effectively protects the internal mechanisms and optical elements from shock and damage, while its black finish adds a distinctive, attractive appearance.
  • Pentax's Super-Multi-Coating eliminates harmful ultraviolet rays and improves light transmission for high contrast images with no glare or flare.
  • The center-focus system allows accurate and speedy focusing on the subject with simple fingertip control.
  • Incorporated in the right eyepiece ring, the diopter adjustment allows near- and far-sighted viewers to easily and quickly adjust the image to match their eyesight.
  • Made of soft but durable rubber material, the eyepiece rings can be easily folded back to make image viewing easier for eyeglass wearers.
  • High quality BaK-4 prisms transmit more light at the edges to enhance illumination for easier viewing in dim light.
  • Combine the built-in tripod socket with a tripod and an optional Tripod Adapter-N to stabilize the binoculars and prevent unwanted shake, making extended observations easy and comfortable.
  • Protected by a limited lifetime warranty.


Type:  Porro-prism center focusing 
Objective Lens:  2 elements in 1 group 
Eyepiece Lens:  3 elements in 2 groups 
Magnification:  8X 
Objective Lens Diameter:  40mm 
Real Field of View:  8.2 Degrees 
Apparent Field of View:  66 Degrees 
Field of View at 1000m:  143m 
Field of View at 1000 Yards:  429 ft. 
Exit Pupil:  5 mm 
Eye Relief:  13mm 
Prism:  BaK4 
Multi-Layer Coating: 4 Lenses 
Minimum Focusing Distance:  20 ft. 
Relative Brightness:  25
Diopter Adjustment Range:  +3 
Eye Width Adjustment Range:  2.3 - 2.8 in. (58-72mm) 
Focusing Range:  About 6m to infinity 
Eyepiece Ring:  Collapsible 
Body Color:  Black 
Height & Width:  5.1" x 7.4" (131mm x 187mm) 
Thickness:  2.2" (56mm) 
Weight:  27.2 oz. (770g) 

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Pentax 8x40 XCF Binoculars - 65791

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