VIVI Spark 20×80 High-Power Astronomy Binoculars
VIVI Spark 20x80 high-power binoculars are built for observers who want big-aperture, two-eyed views of the night sky and extreme distances on land. The classic 20x80 configuration pairs 20x magnification with 80mm objectives, gathering far more light than handheld sizes can and delivering bright, high-contrast images of the moon, star fields and distant terrestrial targets.
Product Description
The VIVI Spark 20×80 high-power binoculars are built for observers who want big-aperture, two-eyed views of the night sky and extreme distances on land. The classic 20×80 configuration pairs 20x magnification with 80mm objectives, gathering far more light than handheld sizes can and delivering bright, high-contrast images of the moon, star fields and distant terrestrial targets.
Optically, the VIVI Spark 20×80 relies on a BAK4 advanced prism and full broadband multi-layer coating, the combination specified for high light transmission and high-resolution imaging with clean edge detail. A 3.6° field angle (63m at 1000m; 156ft/1000yds) frames broad stretches of sky, while the 4mm exit pupil keeps the image bright, and a 12m minimum focus distance handles closer subjects when the binoculars come down from the sky.
Protection is built in: the housing is rated rainproof, fogproof and shockproof, and the anti-mildew treatment guards the optics through humid field seasons. At 2400g, this is a solid, stable observation platform designed for mounted, supported viewing rather than casual handheld carry — exactly what sustained stargazing and long-distance observation demand.
Big 80mm Aperture for the Night Sky
The 80mm objectives collect a large amount of light, pulling faint lunar detail, bright planets and star clusters out of the sky for two-eyed views no small binocular can match.
BAK4 Prism with Broadband Multi-Layer Coating
The coated BAK4 prism and full broadband multi-layer coating support the specified high transmission and high resolution, keeping stars sharp and edges clean across the 3.6° field.
Solid, Weather-Protected Build
Rainproof, fogproof and shockproof housing with anti-mildew treatment keeps the optics performing through damp nights and rough transport — a stargazing tool you can rely on season after season.
Why Choose the VIVI Spark 20×80?
The VIVI Spark 20×80 is the astronomy flagship of the Spark series. Where the VIVI Spark 8×40 wide-angle binoculars trade aperture for an easy handheld carry, and the VIVI Spark 10×50 offers a step up in low-light reach at 913g, the 20×80 commits fully to light grasp: 80mm objectives gather roughly 2.5 times the light of a 50mm glass, and 20x magnification turns the moon into a landscape of craters and maria. If your observing is centered on the night sky or extreme terrestrial distance, this is the Spark model that delivers.
Because this is a fixed 20x instrument with a 4mm exit pupil and a solid 2400g body, it is used differently from smaller binoculars. The image is noticeably brighter and steadier when the binoculars rest on a sturdy tripod or other support, and that is exactly how sustained lunar and deep-sky sessions are enjoyed. The 3.6° field (63m at 1000m) comfortably frames the full moon and wide star fields, and the -5 to +5 D diopter adjustment lets each observer tune the image to their own eyes.
If you want a zoom instrument for flexible daytime ranges instead, consider the VIVI BD80HD 20-60×80 spotting scope, which offers the same 80mm aperture with variable magnification for one-eyed viewing. For two-eyed, fixed high-power astronomy and long-distance observation, the VIVI Spark 20×80 is the purpose-built choice.
Product Features
- 20x High Magnification: 20x power delivers true high-magnification detail on the moon, planets and distant land targets — far beyond handheld-class binoculars.
- 80mm Large Aperture Objectives: The big 80mm objectives gather a large amount of light, supporting bright, high-contrast images of faint night-sky subjects.
- 4mm Exit Pupil: The 4mm exit pupil balances high magnification with enough image brightness for comfortable astronomical and dusk viewing.
- BAK4 Advanced Prism: The coated BAK4 prism supports clear, bright imaging with sharp detail maintained to the edge of the field.
- Full Broadband Multi-Layer Coating: Broadband multi-layer coated optics support the specified high light transmission and high resolution.
- 3.6° Field Angle: A 63m field at 1000m (156ft/1000yds) frames the full moon, wide star fields and broad distant landscapes with room to spare.
- 12m Minimum Focus Distance: Close-focus capability lets you switch from sky watching to detailed viewing of nearer subjects.
- -5 to +5 D Diopter Adjustment: Independent diopter correction matches the image to each observer’s eyesight for maximum sharpness.
- Two-Eyed Binocular Viewing: Compared with a one-eyed spotting scope, binocular viewing is more relaxed and natural during long stargazing sessions.
- Rainproof, Fogproof & Shockproof: Sealed, reinforced construction protects the optics through damp nights, field transport and rough handling.
- Anti-Mildew Optics Protection: Anti-mildew treatment guards the optical path through humid climates and long storage between seasons.
- Solid 2400g Observation Platform: The substantial build provides a stable platform for supported, tripod-style high-power observation.
Application Areas
Stargazing
The 20×80 light-gathering combination pulls faint stars and clusters into view, and two-eyed viewing keeps long sessions under the night sky comfortable and natural.
Moon Observation
At 20x the moon fills the view with crater rims, terraces and maria, and the 3.6° field frames the entire lunar disk with dark sky around it.
Long-Distance Land Observation
Ships on the horizon, distant ridgelines and far-off structures resolve clearly at 20x, with the 63m@1000m field keeping broad scenes in context.
Wildlife and Bird Observation at Range
The 80mm aperture and 20x power identify waterfowl, shorebirds and wary wildlife from distances that leave them undisturbed.
Hunting and Game Surveillance
Glass open country from a fixed position at first and last light: the 4mm exit pupil and broadband coated optics keep game visible in dim conditions.
Marine and Navigation Observation
Rainproof and fogproof construction handles spray and humid sea air, while 20x magnification reads buoys, markers and distant vessels from shore or deck.
Power Safety Inspection
High-power 20x optics let inspection crews examine distant transmission towers and line hardware from safe positions along the right-of-way.
Forestry Investigation
The 80mm glass resolves tree crowns and stand detail across valleys, supporting species identification and survey work from fixed viewpoints.
Security and Military Inspection
The solid, shockproof platform suits perimeter and border observation posts, where extreme distance and low-light performance both matter.
Technical Parameters
| Specifications | Technical Parameter |
|---|---|
| Magnification | 20x |
| Objective Diameter | 80mm |
| Eyepiece Diameter | 16mm |
| Field Angle | 3.6° |
| Field of View @1000m | 63m; 156ft/1000yds |
| Exit Pupil Diameter | 4mm |
| Lens Coating | Full broadband multi-layer coating |
| Prism Type | BAK4 |
| Diopter Adjustment | -5 to +5 D |
| Minimum Focus Distance | 12m |
| Waterproof Rating | Rainproof, fogproof & shockproof construction |
| Net Weight | 2400g |
| Product Size | 340 x 100 x 240mm |
FAQ
Are VIVI Spark 20×80 binoculars waterproof?
Yes. The binoculars are rated rainproof and fogproof, with shockproof construction and anti-mildew treatment protecting the optics in damp outdoor conditions.
What is the field of view of the VIVI Spark 20×80?
The binoculars offer a 3.6° field angle, which equals 63m of visible width at 1000m (156ft/1000yds) — wide enough to frame the full moon and broad star fields at 20x.
Can the VIVI Spark 20×80 be mounted on a tripod?
A sturdy tripod is strongly recommended. At 20x magnification every hand movement is greatly amplified, and the solid 2400g body is designed for supported, tripod-style observation during long stargazing sessions rather than extended handheld use.
How much do VIVI Spark 20×80 binoculars weigh?
The binoculars weigh 2400g. That solid, stable mass is part of the design: it makes the 20x platform steadier on a support, and it is a binocular to mount rather than to carry all day.
Are the VIVI Spark 20×80 good for stargazing?
Yes. The 80mm objectives gather a large amount of light, 20x power resolves lunar craters and bright deep-sky objects, and the 4mm exit pupil with broadband multi-layer coating keeps the image bright — a classic astronomy binocular configuration.
Are the VIVI Spark 20×80 good in low light?
Yes. The large 80mm aperture and broadband multi-layer coated BAK4 optics reveal more scene detail in dim environments than smaller binoculars can. This is low-light optical performance — the binoculars are not a night-vision device.
What is the difference between the VIVI Spark 20×80 and the VIVI BD80HD 20-60×80?
The VIVI Spark 20×80 is a fixed 20x binocular with two-eyed viewing built for astronomy and long-distance observation; the VIVI BD80HD 20-60×80 is a zoom spotting scope with variable 20-60x magnification for one-eyed, flexible-range daytime use. Both share the 80mm aperture class.
Can I use the VIVI Spark 20×80 for daytime viewing?
Yes. With a 12m minimum focus distance and rainproof construction, it works for long-distance land observation, marine watching and security use — ideally mounted on a support for the steadiest 20x image.
