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Item #:
54138440
Pentax Jupiter 8x40 Easy Viewing Large Aperture porro Prism Binocular, Black
89% of respondents would recommend this to a friend
Item #:
54138440
USD 114
Price Details
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In stock
Imported from USA store
QTY:
Only 2 items left in stock.
Order now and get it around Thursday, October 01
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Large-aperture objective lenses for bright, clear viewing: They assure a sharp, high-contrast image of the subject even in poor lighting conditions.
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What Stands Out
Large Aperture
The 50mm large aperture allows for bright and clear images, making it ideal for low-light conditions and detailed viewing of distant objects.
Easy Viewing
Designed for comfort, the ergonomic design and lightweight build make prolonged use easy, catering to birdwatchers and outdoor enthusiasts.
High Magnification
With 16x magnification, users can enjoy intricate details of wildlife and scenery, providing an enhanced experience for nature lovers.
Product Details
| Features | Long Eye Relief |
| Objective Lens Diameter | 40 millimeters |
| Magnification Maximum | 8 x |
| Specific Uses | Hiking & Outdoors, Travel |
| Mount Type | Tripod Mount |
| Eye Relief | 13 millimeters |
| Prism Type | Porro Prism |
| Relative Brightness | 25 |
| Exit-Pupil Diameter | 5 millimeters |
| Coating | Anti-Reflective |
| Water Resistance Level | Not Water Resistant |
| Focus Type | Center Focus, Fixed Focus |
| Zoom Ratio | 2:1 |
| Field of View | 143 meters |
| Apparent Angle of View | 50 degrees |
| Focus Description | Manual Focus |
| Low Light Technology | yes |
| Item Dimensions L x W x H | 7.4"L x 5.2"W x 2.3"H (18.8 x 13.2 x 5.8 cm) |
| Item Weight | 1.6 pounds (730 grams) |
| Item Dimensions L x W | 7.4"L x 5.2"W (18.8 x 13.2 cm) |
| Size Map | Full Size |
| Brand | Pentax |
| Age Range Description | Adult |
| Model Name | PENTAX JUPITER 8x40 |
| Manufacturer | RICOH |
| UPC | 027075304116 |
| Number of Items | 1 |
| Global Trade Identification Number | 00027075304116 |
| Built-In Media | case, eyelens cap, neckstrap, objective lens cap |
| Model Number | 65911 |
| Manufacturer Part Number | 65911 |
| Unit Count | 1 Count |
| Color | Black |
| Enclosure Material | Glass |
| Age Range (Description) | Adult |
| Special Feature | Long Eye Relief |
What's in the box
case
neckstrap
eyelens cap
objective lens cap
Who Should Buy?
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Birdwatchers
Experience detailed views of birds from a distance, thanks to the high magnification and large aperture features.
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Stargazers
Ideal for astronomy enthusiasts, offering a wide field of view and bright images of celestial bodies.
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Outdoor Enthusiasts
Perfect for hikers and campers seeking durable binoculars for wildlife observations and scenic views.
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Casual Users
Not ideal for occasional users who might prefer more compact and lightweight binoculars for easy portability.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What makes the Pentax Jupiter 8x40 binoculars ideal for outdoor activities?
Answer: The Pentax Jupiter 8x40 binoculars feature an 8x magnification and a 40mm objective lens, making them perfect for outdoor activities such as bird watching, hiking, and sporting events. This combination means you can easily focus on distant objects with clarity. Their Porro prism design enhances depth perception, providing a wider field of view. For nature enthusiasts or sports fans, these binoculars allow for a stunning visual experience, helping to capture the beauty of landscapes or the excitement of live games. -
Question:
Are the Pentax Jupiter 8x40 binoculars suitable for low-light conditions?
Answer: Yes, the Pentax Jupiter 8x40 binoculars are designed with a large aperture that allows for enhanced light transmission, making them suitable for low-light conditions. This feature is particularly beneficial during early morning or dusk outings, such as wildlife observation or stargazing. The quality glass and coatings used in their construction ensure that you'll still see vibrant details in dim lighting, which makes them an excellent choice for avid adventurers and photographers who want to extend their viewing hours. -
Question:
How durable are the Pentax Jupiter 8x40 binoculars?
Answer: The Pentax Jupiter 8x40 binoculars are built with robust materials, making them highly durable for various outdoor environments. With a weather-resistant design, they can withstand moisture and dust, perfect for adventurous outings in nature. From rugged hiking trails to rainy camping trips, these binoculars are designed to endure and keep performing reliably, ensuring you can trust them in demanding conditions. -
Question:
What is the weight of the Pentax Jupiter 8x40 binoculars?
Answer: The Pentax Jupiter 8x40 binoculars are lightweight, typically weighing around 2.1 lbs (approximately 950 grams). This makes them easy to carry during long excursions or day trips. Lightweight binoculars are especially appreciated by bird watchers and outdoor enthusiasts who often need to carry their gear for extended periods without experiencing fatigue. The ergonomic design also ensures comfort while in use, allowing for extended viewing sessions. -
Question:
Can you use the Pentax Jupiter 8x40 binoculars with glasses?
Answer: Yes, the Pentax Jupiter 8x40 binoculars are designed with long eye relief, making them comfortable for eyeglass wearers. This feature allows users to comfortably view the entire field of view without straining their eyes or having to remove their glasses. This is particularly beneficial for those who enjoy long-duration activities such as bird watching or attending outdoor events, ensuring that everyone can enjoy the view without discomfort. -
Question:
Do the Pentax Jupiter 8x40 binoculars have any special coating?
Answer: Yes, the Pentax Jupiter 8x40 binoculars feature anti-reflective coatings on their optics. These coatings enhance light transmission and contrast, ensuring images are bright and vibrant even in challenging lighting conditions. This optical treatment is essential for anyone looking to observe wildlife or detailed landscapes. The result is clearer and sharper images that improve your overall viewing experience, making them an excellent tool for naturalists and photographers alike. -
Question:
What accessories come with the Pentax Jupiter 8x40 binoculars?
Answer: The Pentax Jupiter 8x40 binoculars typically come with several accessories to enhance your experience, including a neck strap for easy carrying, lens caps to protect the optics, and a soft carrying case for storage and transport. These accessories ensure that you can conveniently access and maintain your binoculars during outings. This is particularly beneficial for travelers and outdoor enthusiasts who need to keep their gear safe and ready for immediate use. -
Question:
Can the Pentax Jupiter 8x40 binoculars be mounted on a tripod?
Answer: Yes, the Pentax Jupiter 8x40 binoculars are designed to be tripod adaptable. They come equipped with a mounting thread, allowing you to connect them to a tripod for stability during extended viewing sessions. This feature is ideal for birdwatchers or photographers who require steady images, especially during long observations or when using higher magnifications. By mounting the binoculars, you can reduce hand-shake and enjoy sharper views without experiencing fatigue. -
Question:
What type of prism system do the Pentax Jupiter 8x40 binoculars use?
Answer: The Pentax Jupiter 8x40 binoculars utilize a Porro prism system. This design provides a wider field of view and better depth perception compared to traditional roof prism types. The Porro prism configuration allows for significantly better light transmission and contrast, which is ideal for outdoor activities such as wildlife observation or sporting events. Users benefit from a more immersive viewing experience, making these binoculars a favorite among avid outdoor enthusiasts. -
Question:
Where can I buy Pentax Jupiter 8x40 Easy Viewing Large Aperture porro Prism Binocular, Black?
Answer: You can purchase the Pentax Jupiter 8x40 Easy Viewing Large Aperture Porro Prism Binocular, Black from Ubuy in Micronesia. Ubuy offers a convenient platform where you can browse through product specifications and customer reviews, ensuring you make an informed choice. They also provide a variety of payment options and shipping methods tailored for customers in your region, making it easier to bring this exceptional binoculars home.
Pentax Binoculars 65911 Editorial Review
Pentax Juipter 10x50 Easy Viewing Large Aperture porro Prism Binocular, Black, 65912 offers a remarkable combination of lightweight design and high performance, making it ideal for hiking and outdoor adventures. With a magnification of up to 10x and a 50mm objective lens diameter, these binoculars ensure a bright and clear view, perfect for spotting distant wildlife or enjoying scenic vistas. Users appreciate the ergonomic center focus system, providing easy adjustments even in low light conditions. The Porro prism design contributes to a wider field of view. Although this model is not water-resistant, it remains a top choice for outdoor enthusiasts seeking quality optics.
Customer Reviews & Ratings
88 customers ratings
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5 Star
85%
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4 Star
9%
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3 Star
2%
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2 Star
2%
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1 Star
2%
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Pros
- Lightweight design for easy portability
- High magnification for detailed viewing
- Wide field of view at 114 meters
- Ergonomic center focus system
- Ideal for hiking and outdoor activities
Cons
- Not water resistant
Platform Trust & Buyer Confidence
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“Great products and very good service: very easy and very fast international delivery.”
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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USD 114
Order now and get it around Thursday, October 01
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QTY:
Only 2 items left in stock.
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Features & Benefits
- Large objective lenses with an aperture of more than 40mm provide superb light-gathering power.
- Optical element treated to minimize unwanted reflection of light, delivering a well-defined subject image.
- Functional exterior design optimizes ease of use, with easy access to the focus ring and comfortable hold.
- Exterior rubber coating ensures a firm hold and prevents accidental slippage.
- Optional TP-3 tripod adapter offers quick, effortless mounting of binoculars onto a tripod.
- Available in 8x, 10x, 12x, and 16x models to suit various viewing requirements.
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