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Pentax 8x21 U-Series UP Binoculars

- Aspherical Lens Elements
- BAK4 Porro Prisms
- Fully Multicoated Optics
- 6.2° Angle of View
- Compact & lightweight design
SKU: PTX-61801
Stock Status: IN STOCK
Ships Out Next Business Day
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The product is not stocked with us in the warehouse, but available for order from our suppliers. For these items, there is a short lead time before it gets sent out to you.

This product is currently neither stocked in our warehouse nor with our supplier. However, it is still available to be purchased and will be sent out to you once the item is back in stock on the specified date.

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Retail Price $119.95


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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 lightweight black 8x21 U-Series UP 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 21mm 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 2.6mm exit pupil, a 13mm eye relief, an interpupillary and a diopter adjustments. The binocular is very compact, lightweight at only 210grams and features a single piece frame that houses objectives, which allows for a synchronized interpupillary adjustment. 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
- Single piece objectives' frame allows for a synchronized interpupillary adjustment
- Contoured body provides a comfortable grip
- Center focus knob offers an easy focusing
- Sliding rubber 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) 2.6mm
Eye Relief (mm) 13mm
Field of View (m@1000m) 108.23m
Field of View(ft@1000yards) 326
Eyecups Twist Up


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Good buy. - Review by
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Compact and light, just right for travel.
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Excellent for bird watching - Review by
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I wanted a set of binoculars for my son for bird watching. I didn't want anything to heavy or bulky. The image quality is amazingly crisp and they are very small and light weight. Perfect! The staff at Ozscopes were very helpful over the phone to make the purchase. :)
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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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