Product Description

The VIVI Spark 10×50 binoculars pair 10x magnification with large 50mm objective lenses to collect noticeably more light than compact formats. The result is a bright, detailed image that keeps working as daylight fades — ideal for dawn and dusk observation when birds and wildlife are most active.

A 5mm exit pupil, relative brightness of 39 and a twilight factor of 20 give this configuration its low-light strength, while BAK4 prisms and FMC multi-layer coating deliver sharp images with natural colors across a 6.5° field — approximately 114m of viewing width at 1000m. The classic Porro prism body provides a comfortable, three-dimensional viewing experience with a secure rubber grip.

50mm Large Aperture for Brighter Images

The 50mm objectives gather substantially more light than 42mm or smaller formats, feeding a 5mm exit pupil that keeps the image bright and relaxed under heavy cloud, in forest shade and toward dusk.

Balanced 10x Reach with a Wide 6.5° Field

The 10x magnification brings distant subjects close without sacrificing coverage — the 6.5° field angle still delivers about 114m at 1000m, so you can locate subjects quickly and then study them in detail.

Comfortable Handling for Long Sessions

An extra-large focusing wheel makes fine adjustments easy, the rubber exterior provides a secure hold, and the -5 to +5 D diopter setting and adjustable 59.2–73mm interpupillary distance let every user dial in a comfortable, precise view.

Built for Changing Outdoor Conditions

The housing carries an IP43 rating, providing basic splash resistance and light rain protection for outdoor use. At 913g, this is a solid, stable optic built around large-aperture performance rather than minimum weight.

Why Choose the VIVI Spark 10×50?

Choose the VIVI Spark 10×50 when light gathering matters more than carry weight. The 50mm objectives, 5mm exit pupil and 39 relative brightness deliver a visibly brighter image than 42mm models in the critical first and last hours of daylight — the classic strength of the 10×50 format for nature, travel and field observation.

Within the Spark series, the VIVI Spark 8×40 shares the same Porro prism housing but prioritizes a super-wide 8.12° (142m) field of view for finding fast-moving subjects, while the VIVI Spark 10×50 prioritizes light intake and reach for distant subjects and dimmer conditions. If your observation happens mostly in good midday light, the 8×40 is lighter and wider; if you watch at dawn, dusk or under heavy cloud, the 10×50 is the better tool.

If you want maximum magnification flexibility from the same 50mm platform, the VIVI Spark 10-22×50 adds a continuous zoom — a trade-off that narrows the field of view at high power. And if you need serious weather sealing, note that this model’s IP43 rating provides splash and light-rain protection rather than full waterproofing.

Product Features

1. 10x Magnification: 10x power brings distant wildlife, birds, boats and landscapes usefully closer for detailed viewing.
2. 50mm Large Aperture: Large 50mm objectives collect significantly more light than compact formats for brighter images.
3. 5mm Exit Pupil: A generous 5mm exit pupil delivers a bright, relaxed image as daylight fades.
4. BAK4 Porro Prism: BAK4 prism material supports sharp, high-contrast images with a natural sense of depth.
5. FMC Multi-Layer Coating: Fully multi-coated optics support light transmission and clear, natural-color viewing.
6. 6.5° Field Angle: A wide field for a 10x model, providing approximately 114m of coverage at 1000m.
7. 39 Relative Brightness: High relative brightness keeps the image luminous in forest shade and evening light.
8. Twilight Factor 20: A 20 twilight factor supports detailed observation during dawn and dusk hours.
9. 3m Minimum Focus Distance: Close 3-meter focusing handles nearby subjects as well as distant scenery.
10. Extra-Large Focus Wheel: The oversized center wheel makes fine focus adjustments quick and comfortable.
11. Diopter Adjustment: -5 to +5 D adjustment fine-tunes the image for the difference between your eyes.
12. Adjustable Interpupillary Distance: 59.2–73mm adjustment fits a wide range of users comfortably.
13. Rubber Armored Body: The rubber exterior provides a secure, confident grip during outdoor use.
14. Splash-Resistant Housing: The IP43 rating provides basic splash resistance and light rain protection for field use.

Application Areas

Bird Watching & Wildlife Observation

The 10x reach and bright 50mm optics make it possible to identify distant waterfowl, raptors and mammals — and keep watching them productively as the light drops at dawn and dusk.

Low-Light Nature Observation

With a 5mm exit pupil, 39 relative brightness and 20 twilight factor, this model is built for the dim hours along forest edges, wetlands and open fields when animals are most active.

Outdoor Tourism & Sightseeing

The large-aperture view adds clarity and brightness to distant landmarks, coastal scenery and mountain panoramas viewed from overlooks and viewpoints.

Sports Events & Concerts

10x magnification brings distant players and performers close, and the bright optics keep the image clear even under evening stadium lights.

Forestry Surveys

The 114m field of view and 10x detail support forestry investigation, patrol work and habitat scanning across wide tracts of woodland.

Navigation Observation

The 50mm objectives maintain a usable image on distant boats, shorelines and markers in the lower light of early morning and evening on the water.

Archaeological & Land-Resource Surveys

The combination of reach, brightness and wide coverage assists visual observation of distant terrain and site features during survey fieldwork.

Security & Industrial Inspection

The 10×50 configuration supports general visual inspection of distant structures and facilities during outdoor security and patrol work.

Technical Parameters

FAQ

Are VIVI Spark 10×50 binoculars waterproof?

The VIVI Spark 10×50 carries an IP43 rating, which provides basic splash resistance and light rain protection. It is not fully waterproof and should not be exposed to heavy rain or submerged.

What is the field of view of the VIVI Spark 10×50?

The binoculars offer a 6.5° field angle, equal to approximately 114m of viewing width at 1000m — wide coverage for a 10x large-aperture model.

Can the VIVI Spark 10×50 be mounted on a tripod?

The supplied specifications do not list a tripod mount for this model. At 913g with a steady Porro prism body, it is designed for comfortable handheld observation; for tripod-based viewing, consider a tripod-equipped Spark model.

How much do VIVI Spark 10×50 binoculars weigh?

The binoculars weigh approximately 913g. This is a solid, stable build that prioritizes large-aperture brightness over ultra-light portability.

Are 10×50 binoculars good for low-light viewing?

Yes. The 50mm objectives, 5mm exit pupil, 39 relative brightness and 20 twilight factor make the 10×50 format one of the best choices in the Spark series for dawn, dusk and heavily overcast conditions.

What is the difference between the VIVI Spark 10×50 and the VIVI Spark 8×40?

Both models share the same Porro prism housing. The VIVI Spark 8×40 prioritizes a super-wide 8.12° field (142m at 1000m) at a lighter 778g, while the VIVI Spark 10×50 adds larger 50mm objectives and 10x power for greater reach and clearly better low-light brightness at 913g. Choose the 8×40 for fast-moving subjects in good light, and the 10×50 for distant subjects and dimmer hours.

Are VIVI Spark 10×50 binoculars good for bird watching?

Yes. The 10x magnification, bright 5mm exit pupil and 114m field of view suit waterfowl, shorebirds, raptors and open-country birding, especially in the low-light hours when birds are most active.

Is the VIVI Spark 10×50 suitable for travel?

It can travel with you, but at 913g it is best suited to users who value large-aperture brightness over minimum pack weight. For lightweight travel, a roof prism model such as the VIVI Spark 8×42 or 10×42 is easier to carry.