Pentax UP 10x21 Binoculars Navy
The smallest body in the U series, a high-performance compact form that fits perfectly in your hand. Full multi-coating suppresses flare and ghosts, ensuring a bright view that is easy to see. Reliable specifications that incorporate easy-to-use functions in a small body. Easy to use even for children with small eye width.
The smallest body in the U series, a high-performance compact form that fits perfectly in your hand. Full multi-coating suppresses flare and ghosts, ensuring a bright view that is easy to see. Reliable specifications that incorporate easy-to-use functions in a small body. Easy to use even for children with small eye width.
The smallest body in the U series, a high-performance compact form that fits perfectly in your hand. Full multi-coating suppresses flare and ghosts, ensuring a bright view that is easy to see. Reliable specifications that incorporate easy-to-use functions in a small body. Easy to use even for children with small eye width.
The smallest body in the U series, a high-performance compact form that fits perfectly in your hand. Full multi-coating suppresses flare and ghosts, ensuring a bright view that is easy to see. Reliable specifications that incorporate easy-to-use functions in a small body. Easy to use even for children with small eye width.
in 24 offers
The lowest price for Pentax UP 10x21 Binoculars Navy right now is $101.42 at eBay.com.au, compared across 16 retailers.
The all-time low was $85.54 on 12 May 2026 — today's price is 19% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 5 Nov 2026.
Last updated at 05/11/2026 09:44:01
Pentax 10x21 U-series Up Binoculars (navy) [61805]
Delivery $11
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Pentax 10X21 PENTA UP Binoculars UP10NV Navy
Delivery $14.47
Pentax 10x21 U-Series UP Binoculars (Navy)
PENTAX Porro Prism Binoculars UP 10x21 Navy 61805 Multi Coating Lens w/case NEW
Delivery $28.51
Pentax 10x21 U-Series UP Binoculars (Navy)
Delivery between 10–15 Nov $9
Pentax UP 10x21 Binoculars - Navy
Pentax UP 10x21 Binoculars (Navy)
Delivery between 8–16 Nov $10
Pentax UP 10x21 Binoculars (Navy) - Live Price Matching
Free delivery between 13–19 Nov
Pentax UP 10x21 Binoculars (Navy)
Free delivery between 9–12 Nov
Pentax 10x21 U Series UP Binoculars (Black, Pink or Navy) - Navy
Delivery between 13–19 Nov $13.99
originally posted on ebay.com
I can now watch my sons golf shots from a far
originally posted on adorama.com
Best small binoculars that you can buy, plus great price
originally posted on ebay.com
It not only looks good in navy blue, but functions well and simply delivers a fine image. I use it mostly to view objects from 3 meters to 100+ meters and the image is always sharp once you make the adjustment for the varience in the focal length.
| Brand | Pentax |
| Prism Design | Porro Prism |
| Focus Adjustment | Manual Focus |
| Colour | Pink, Navy |
| Objective Diameter | 21 mm objective diameter |
Pentax 10x21 U-series Up Binoculars (navy) [61805]
Delivery $11
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pentax 10X21 PENTA UP Binoculars UP10NV Navy
Delivery $14.47
Pentax 10x21 U-Series UP Binoculars (Navy)
PENTAX Porro Prism Binoculars UP 10x21 Navy 61805 Multi Coating Lens w/case NEW
Delivery $28.51
Pentax 10x21 U-Series UP Binoculars (Navy)
Delivery between 10–15 Nov $9
I can now watch my sons golf shots from a far
Best small binoculars that you can buy, plus great price
It not only looks good in navy blue, but functions well and simply delivers a fine image. I use it mostly to view objects from 3 meters to 100+ meters and the image is always sharp once you make the adjustment for the varience in the focal length.
The optics are quite good, with good sharpness toward the edge of the field, though not quite as good as similar Nikons I got 20 years ago.There are some negatives, though.* The eyecup conversion is push-pull. That's fine, but if you leave the eyecups pulled out, the binoculars no longer fit in the case.* In addition, with the eyecups out (i.e., not wearing glasses) the cups have to be pressed right into your eyes to reach within the eye relief point, making it uncomfortable if you happen to have eyelashes.* The diopter adjustment is hard to turn, making it difficult to adjust while looking through the glasses. But, at least there is one.* Although there are 2 strap anchors, the provided strap is only a wrist strap for a single anchor point.* In addition, the anchor ... MoreThe optics are quite good, with good sharpness toward the edge of the field, though not quite as good as similar Nikons I got 20 years ago.There are some negatives, though.* The eyecup conversion is push-pull. That's fine, but if you leave the eyecups pulled out, the binoculars no longer fit in the case.* In addition, with the eyecups out (i.e., not wearing glasses) the cups have to be pressed right into your eyes to reach within the eye relief point, making it uncomfortable if you happen to have eyelashes.* The diopter adjustment is hard to turn, making it difficult to adjust while looking through the glasses. But, at least there is one.* Although there are 2 strap anchors, the provided strap is only a wrist strap for a single anchor point.* In addition, the anchor points are very small, making it difficult if not impossible to attach a real strap.* The lens covers do not fit well and fall right off. Expect to lose them in short order.
Perfect to carry and still have great quality optics to see what ever you are wanting to look at
Excellent imaging and easy adjustments plus weight and size make this ideal for travel and back-packing. Great for nature study and sports as well as scenery viewing. The price is easy on finances and a great value.
Great material quality, very well built, and pretty bright optics for such a small model. The anti-reflex coating does good work, the image is clear and sharp.
Friends of ours had these during a recent cruise vacation. So, we ordered our own set. These are great for travel. Lightweight, easy to use. Surprisingly good optics for the size and the price. (I am a hunter, so I use higher end optics for hunting, but I spend quite a bit more than what these cost for my hunting binoculars.) I would recommend these for travel, for backpacking (where size and weight might matter), and for anytime you just want a convenient set of binoculars.
The eye relief is listed as 9.5mm, almost a centimeter. However, the eyecups extend significantly less than that, yet it's not possible to get full field of view at that extension, so I do not believe their eye relief spec.The lifetime warranty it turns out only applies during the time period that Ricoh (owner of Pentax) considers to be the product lifetime, i.e. as long as they choose to keep parts for it. That might be 10 years, or it might be 2 years; they don't say.I am returning the product because of unusable eye relief.
| Brand | Pentax |
| Prism Design | Porro Prism |
| Focus Adjustment | Manual Focus |
| Colour | Pink, Navy |
| Objective Diameter | 21 mm objective diameter |
