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Pentax 8x25 U-Series UP Waterproof Binoculars

- Bak-4 porro prisms
- Fully multicoated optics
- 50° angle of view
- Waterproof & fogproof
- Reinforced polycarbonate housing
- Synchronized eyepiece adjustment
- Centre focus
- Twist-Up eyecups
SKU: PTX-61931
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Stock Status: IN STOCK
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Retail Price $239.00


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Pentax is a leading optics manufacturer, better known for it's legacy in the film and digital camera industry. Lesser known to others, the Pentax Brand has a branch of high performance binoculars and premium spotting scopes, today, they are well known with birders, hunters, boaters and even astronomers. Pentax optics are carefully engineered under the care of manufacturers in Japan, where the headquarters is managed by the HOYA Corporation in Tokyo.

The compact and solid black Pentax 8x25 U-Series UP Waterproof Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a 50° angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8x magnification and 25mm objectives, you obtain a notable magnification, insignificant image jitter due to unsteady hands, and a compact form factor. You can easily spot your targets with a wide 6.2° angular field of view and quickly bring them into focus with a center focus wheel. In addition to observing distant scenes, birds and game, the minimum focus of 9.2' allows you to study in detail close objects like animal footprints, marks or landscape features. The binocular also features a 3.1mm exit pupil, a 15mm eye relief, an interpupillary and a diopter adjustments. The binocular is very compact, lightweight at only 349grams and features a dual-axis eyepiece frame that houses objectives, which allows for a synchronized interpupillary adjustment. Its optical tubes are nitrogen-filled and O-ring sealed so they can are submersible to 3.3', as well as fogproof in all weather conditions. To accommodate glass wearers, the binocular offers sliding rubber eyecups too.

- BAK4 Porro prisms
- Aspherical optical elements offer edge-to-edge image sharpness
- Fully multicoated optics
- Angular field of view: 6.2°
- Interpupillary adjustment
- Diopter adjustment
- Dual-axis eyepiece objectives' frame allows for a synchronized interpupillary adjustment
- Contoured body provides a comfortable grip
- Center focus knob offers an easy focusing
- Twist-Up eyecups

Product Code


Additional Info

Specifications No
Size Class Compact
Prism Type Porro
Prism Glass BaK-4
Focus Type Center Focus
Lens Coating Fully Multi-Coated
Exit Pupil (mm) 3.1mm
Eye Relief (mm) 15mm
Field of View (m@1000m) 108.07m
Field of View(ft@1000yards) 325.5
Eyecups Twist Up


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Blew me away - Review by
Overall Score
I've looked through many binoculars and after comparing these to a pair of steiner night hunter xtreme 8x30 binoculars, I was blown away. The pentax 8x25 were clearer and had better colours for a better price.
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Your Pentax Product is Under Australian Warranty From the date of original purchase, your Pentax® Product is warranted to be free of material and workmanship defects for 1 year. In the event of a defect under this warranty, we will, at our option, repair or replace the product, provided that you return the product with a dated proof of purchase receipt (bill of sale).

This warranty does not cover damages caused by misuse, improper handling, installation, collimation or maintenance performed or attempted by unauthorized service agencies. For Pentax Products purchased elsewhere, will NOT qualify for manufacturer's warranty from us, it must be returned to the place of purchase to resolve any issues.


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