Product Description

The VIVI BD 26-78×100 spotting scope is a professional-grade, ultra-large-aperture instrument built for long-range observation. A 100mm objective lens — the largest in the VIVI lineup — is matched with a continuous 26-78x zoom range, so you can open up at 26x to find your subject and push to 78x to examine it in detail, from distant wildlife and lunar craters to targets, vessels and infrastructure.

The optical system pairs a Porro prism with high-definition BAK4 glass and FMC multi-layer coating, delivering bright, sharp images with a resolution of ≤2.2″. A 31.4-16m field of view at 1000m across the zoom range gives you the coverage to locate subjects, while the 4.6-1.54mm exit pupil range, 17mm eye relief and center focus system keep long sessions comfortable and precise.

Built for demanding field work, the nitrogen-filled waterproof housing and 1830g solid body provide a stable platform for extended observation, and the 45° angled eyepiece supports comfortable tripod-mounted viewing. Mobile phone photography is supported with an adapter ring, and camera digiscoping is possible with a tube accessory.

100mm Ultra-Large Aperture

The 100mm objective gathers more light than any other VIVI spotting scope, with a relative brightness of 21.2-2.4 across the zoom range — the foundation for high-power viewing that stays bright and detailed.

26-78x Continuous Zoom

A continuous zoom from 26x to 78x covers the entire long-range workflow: wide acquisition, then maximum magnification. Note that at 78x the field narrows to 16m at 1000m and the exit pupil reduces to 1.54mm, so a tripod is recommended for the best experience.

Professional Resolution and Durability

With optical resolution specified at ≤2.2″ and a nitrogen-filled waterproof build, the BD 26-78×100 delivers the image precision and weather protection that security, marine and inspection professionals rely on.

Why Choose the VIVI BD 26-78×100?

Choose the VIVI BD 26-78×100 spotting scope when reach and light-gathering power are the priority. Its 100mm objective and 26-78x zoom out-magnify and out-gather every other scope in the VIVI lineup, resolving fine detail at distances where 80mm-class instruments run out of light and magnification. Combined with ≤2.2″ resolution, a Porro BAK4 optical path and nitrogen-filled waterproof construction, it is the professional choice for long-range surveillance, marine observation, power line inspection and range work.

Compared with the VIVI BD80HD 20-60×80 spotting scope, the 26-78×100 is the bigger, more specialized tool: 100mm versus 80mm of aperture, 78x versus 60x of top magnification and 1830g versus 1265g of tripod-bound mass. The BD80HD is the lighter, more versatile value option for general birding and travel; the BD 26-78×100 is the instrument you choose when the subject is far away and the detail must be definitive.

If your work involves security, marine, utility inspection, archaeology or target shooting at long range, this is the scope built for the task.

Product Features

1. 26-78x Continuous Zoom: Continuous magnification from 26x to 78x supports both wide subject acquisition and maximum long-range detail.
2. 100mm Ultra-Large Objective: The largest aperture in the VIVI lineup delivers exceptional light intake for bright, high-power viewing at distance.
3. Porro Prism with BAK4 Glass: The Porro/BAK4 optical path reduces light leakage and supports deep, dimensional, high-definition images.
4. FMC Multi-Layer Coating: Multi-layer coating on the 9-element, 6-group optical system supports clear, sharp, high-contrast viewing.
5. ≤2.2″ Resolution: Professional-grade optical resolution resolves fine detail — readout of distant marks, targets and structures — at long range.
6. 45° Angled Eyepiece: The angled eyepiece supports comfortable long-duration viewing and accepts a mobile phone camera holder.
7. 7m Minimum Focus Distance: Focus down to 7m for detailed observation of nearer subjects without switching instruments.
8. 17mm Eye Relief: Comfortable eye relief supports extended observation sessions, including use with glasses.
9. Center Focus System: The center focus mechanism delivers smooth, precise focusing across the entire zoom range.
10. Nitrogen-Filled Waterproof Design: Sealed, nitrogen-purged construction protects the optics in rain, humidity and harsh outdoor conditions.
11. Phone and Camera Support: Mobile phone photography is supported with an adapter ring, and camera digiscoping works with a tube accessory.
12. Tripod Support: Optional tripod compatibility provides the stable base that 100mm aperture and 78x magnification demand.

Application Areas

Security and Surveillance

The 26-78x zoom and 100mm aperture give security and police users the ability to observe persons, vehicles and activity at long range with ≤2.2″ resolution, in wet or dry conditions.

Marine and Harbor Observation

Nitrogen-filled waterproof construction stands up to the marine environment, while 78x magnification identifies vessels, markings and activity across harbors and open water.

Power Line and Infrastructure Inspection

Utility inspectors can examine transformers, insulators and line hardware from a safe distance — the 100mm objective keeps the image bright enough for confident assessment at high power.

Target Shooting Ranges

Shooters can read shot placement on distant targets without leaving the firing line, using the 26-78x zoom to balance field of view and detail for any target distance.

Archaeological Research

Variable magnification supports documentation of distant site features, exposed structures and stratigraphy from observation points that do not disturb the site.

Long-Range Wildlife Observation

The 31.4-16m field of view at 1000m and 100mm light-gathering power support wildlife study at distances that leave behavior undisturbed, from open plains to wetlands.

Moon Observation

Push to 78x on the 100mm objective and lunar craters and mountain detail resolve with the brightness only a big aperture can provide on a stable tripod.

Technical Parameters

FAQ

Is the VIVI BD 26-78×100 spotting scope waterproof?

Yes. The scope features nitrogen-filled waterproof construction, so the optical system is protected against rain, moisture and internal fogging during outdoor field use.

What is the field of view of the VIVI BD 26-78×100?

The field angle ranges from 1.8° at 26x to 0.9° at 78x, equal to 31.4-16m of visible width at 1000m across the zoom range.

Can the VIVI BD 26-78×100 spotting scope be mounted on a tripod?

Yes. Tripod support is available as an optional accessory, and with a 100mm aperture and up to 78x magnification, a tripod is the recommended way to use this scope.

How much does the VIVI BD 26-78×100 spotting scope weigh?

The spotting scope weighs 1830g — a solid, professional-grade platform built for stable, tripod-mounted long-range observation rather than handheld use.

What magnification range does the VIVI BD 26-78×100 offer?

It provides continuous 26x to 78x zoom: 26x for wider subject acquisition and brighter viewing, up to 78x for maximum long-range detail.

Do I need a tripod at high magnification?

Yes, we strongly recommend one. At 78x the field of view narrows to 16m at 1000m and the exit pupil reduces to 1.54mm, so hand movement is greatly magnified and the image dims — a tripod restores steadiness, comfort and image quality.

Does the VIVI BD 26-78×100 support phone photography and cameras?

Yes. The 45° eyepiece supports a mobile phone camera holder used with a mobile phone adapter ring, and camera digiscoping is supported with a tube accessory.

What is the difference between the VIVI BD 26-78×100 and the VIVI BD80HD 20-60×80?

The VIVI BD 26-78×100 is the ultra-large-aperture specialist: a 100mm objective, 26-78x zoom, ≤2.2″ resolution and 1830g for maximum long-range reach. The VIVI BD80HD 20-60×80 spotting scope is the lighter (1265g), more versatile 80mm value option best suited to general bird watching and travel.