Pentax 8x25 A-Series AD WP Compact Binoculars

BH #PE8X25ADWP • MFR #62881
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Pentax 8x25 A-Series AD WP Compact Binoculars
Key Features
  • Phase-Corrected BAK4 Roof Prisms
  • Fully Multi-Coated Optics
  • Angle of View: 44°
  • Nitrogen Filled, Water and Fogproof
Designed for the nature enthusiast who wants to pack light without sacrificing image quality, the Pentax 8x25 A-Series AD WP Compact Binoculars deliver bright, clear images while weighing in at just 10.6 ounces. Their BAK4 roof prisms are phase corrected to improve image contrast and enhance color rendition. All of the optics are anti-reflection and fully multi-coated to maximize light transmission, producing the brightest views possible.
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Pentax A-Series AD WP 8x25 Overview

Designed for the nature enthusiast who wants to pack light without sacrificing image quality, the Pentax 8x25 A-Series AD WP Compact Binoculars deliver bright, clear images while weighing in at just 10.6 ounces. Their BAK4 roof prisms are phase corrected to improve image contrast and enhance color rendition. All of the optics are anti-reflection and fully multi-coated to maximize light transmission, producing the brightest views possible.

An asymmetrical hinge design enables the binoculars to be folded up much smaller than typical center-hinged optics. In order to cut weight, the housing is made of corrosion- and impact-resistant fiberglass-reinforced polycarbonate polymer. The material is also temperature resistant, allowing for their use in extreme climates while reducing expansion and contraction that wide temperature swings can cause (and which can make the optical components move out of collimation over time). Their optical tubes are nitrogen filled and O-ring sealed, making them submersible to 3.3' as well as fogproof in all weather conditions.

Optical Performance
  • 8x magnification
  • 25mm objective lenses
  • BAK4 roof prisms
  • Phase-corrected prism coatings enhance contrast and improve color rendition
  • Anti-reflection fully multi-coated optics
  • 288.8' field of view at 1000 yards
  • 44° angle of view
Use and Handling
  • Asymmetrical hinge design enables ultra-compact stowage
  • Closed bridge configuration
  • Knurled center focusing wheel
  • Twist-up eyecups for use with or without eyewear
  • 21mm eye relief, 3.1mm exit pupil
Construction Details
  • Lightweight fiberglass-reinforced polycarbonate housing
  • Housing is corrosion, temperature, and impact resistant
  • Nitrogen filled for fogproof performance; submersible to 3.3' (1m)
  • Rubberized armoring protects against impacts and provides slip-resistant grip
  • Inner focusing mechanism provides smooth focus while preserving waterproof seals
  • Weighs in at just 10.6 oz
UPC: 027075288652

Pentax A-Series AD WP 8x25 Specs

Key Specs
Prism Type
Roof
Magnification
8x
Objective Lens Diameter
25 mm
Angle of View
5.5° (Actual)
Field of View
288.7' @ 1000 yd / 96.2 m @ 1000 m
Exit Pupil Diameter
3.1 mm
Prism Type
Roof
Performance
Magnification
8x
Objective Lens Diameter
25 mm
Angle of View
5.5° (Actual)
Field of View
288.7' @ 1000 yd / 96.2 m @ 1000 m
Minimum Focus Distance
6.3' / 1.9 m
Exit Pupil Diameter
3.1 mm
Eye Relief
21 mm
Diopter Adjustment
Yes
Focus Type
Center
Features
Fogproof
Yes: Nitrogen Filled
Environmental Resistance
Water-Resistant (Unrated)
General
Dimensions
4.3 x 4.1 x 1.6" / 10.9 x 10.4 x 4.1 cm
Weight
10.6 oz / 300.5 g
Packaging Info
Package Weight
0.83 lb
Box Dimensions (LxWxH)
4.85 x 3.55 x 2.75"

Pentax A-Series AD WP 8x25 Reviews

Difficult to focus

By Robert
Rated 3 out of 5
Date: 2026-06-27

Once you get it focused it's pretty good, but I've found two issues: If you go just past the focus point, you have to back up the focus wheel quite a bit and try again. I don't have this issue with my Pentax 8x42 roof prism binoculars. Second, it can be difficult to find the right distance between the optics, though once you do it's ok as the joint is stiff and doesn't move out of adjustment. On the plus side, I wear glasses and eye relief is good, though I find it easier to take my glasses off and use the binocs without when the situation allows.

Super compact excellent binocs

By Elizabeth
Rated 5 out of 5
Date: 2025-08-14

Bought them for a cruise scheduled for next month. Did a test drive at the Lady Gaga concert in Seattle last weekend. They worked just great! Lightweight, easy focusing, bright image. Can't wait to use them on the ship (to Alaska!).

See any errors on this page?

What is the minimum focal distance for these ...

What is the minimum focal distance for these binoculars?
Asked by: Greg
The minimum focusing distance for the Pentax 8x25 A-Series AD WP Compact Binoculars BH #PE8X25ADWP • MFR #62881 is 6.3' / 1.9 m
Answered by: John
Date published: 2023-03-07

What is the inter-pupillary distance for these ...

What is the inter-pupillary distance for these binoculars? This is a critical spec and it is missing from the displayed specs.
Asked by: William
Bear in mind that this just eyeballing it (so, error roughly +/- 1mm). I estimate the adjustment range to be 34mm to 75mm. If your eyes are set far apart, the folding style binocular are probably not going to work for you regardless of the specific model.
Answered by: Darren
Date published: 2021-06-23

What are the dimensions of the Pentax A-Series AD ...

What are the dimensions of the Pentax A-Series AD WP 8x25 in inches, height, width and depth?
Asked by: Barry
The dimensions of the Pentax 8x25 A-Series AD WP Compact Binoculars (B&H # PE8X25ADWP • MFR # 62881) are 4.3 x 4.1 x 1.6" / 10.9 x 10.4 x 4.1 cm.
Answered by: Elliot
Date published: 2023-05-30

What's included? I see a case photo, does it ...

What's included? I see a case photo, does it include lens caps (objective and eyepiece), neck strap?
Asked by: James
Pentax 8x25 A-Series AD WP Compact Binoculars BH #PE8X25ADWP • MFR #62881 comes with Neck Strap Carrying Case with Strap **************** 2 x Eyepiece Caps ************* Limited 25-Year Warranty No objective caps.
Answered by: John
Date published: 2022-04-24

question

Would these be good for a person with a small face?
Asked by: Anonymous
Yes this model would be good for a small face. They fold up very small, so they will be able to adjust to the eyes well.
Answered by: Alex S.
Date published: 2018-08-26

Is there a diopter adjustment?

Is there a diopter adjustment?
Asked by: Jon
Yes, there would be diopter adjustment on this.
Answered by: Moe
Date published: 2021-03-22

Did anyone find a good binoculars case? The one ...

Did anyone find a good binoculars case? The one that come with it is very tight. It's hard to slip the binoculars in & out
Asked by: John
When using the binoculars with the case are you folding the barrels inward before placing them in the case.
Answered by: John
Date published: 2022-11-10
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