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Unfortunately Pentax 8x40 XCF Binoculars 65791 is no longer carried by OpticsPlanet. You can also explore other items in the Binoculars category yourself to try and find the perfect replacement for you!

This model of Pentax Binoculars has been discontinued and is no longer available. Please look for our other Binoculars from high quality brands such as Pentax and Nikon.

Pentax 8x40 XCF Binoculars 65791 Product Info

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
Lens Construction:
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)
Accessories: Objective lens cap, eyepiece lens cap, case, neck strap

In addition to Pentax 8x40mm XCF Binoculars 65791, make sure to check other Pentax Binoculars and other Pentax products offered in our store.

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Pentax 8x40 XCF Binoculars 65791, MPN: 65791, UPC: 027075060869, Code: PX-BI-XCF-65791

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