Experience astronomy and nature like never before with the Explore Scientific BT-82, a high-performance giant binocular telescope built to deliver breathtaking views both day and night. Whether you’re scanning the Moon’s craters, admiring distant star clusters, or observing ships at sea, this robust optic system provides unmatched clarity and comfort thanks to its premium glass, wide field of view, and dual-lens refractor design.
Each barrel functions as a full 82mm refractor telescope, giving you the light-gathering power of two telescopes—one per eye—for enhanced depth perception, greater contrast, and immersive detail. The 45° angled eyepiece housing makes it easy to observe high in the sky without neck strain, perfect for long stargazing sessions or daytime landscape viewing.
Engineered for rugged outdoor use, the BT-82 features a durable magnesium alloy housing, sealed to IPX6 standards and nitrogen-filled to prevent internal fogging. Its optical surfaces are treated with Enhanced Multi-Layer Deposition (EMD) coatings to ensure bright, high-contrast images even in twilight or challenging light conditions.
Two waterproof Explore Scientific 62° LER 20mm eyepieces come included, offering 24x magnification and a 2.6° true field of view. These wide-angle eyepieces feature 15mm of eye relief and soft, foldable silicone eyecups for a comfortable viewing experience—even with glasses.
The BT-82 accepts any 1.25” eyepiece, so you can customize your setup for magnifications from 18x to 60x. A brass compression ring ensures a stable, tilt-free eyepiece mount, while integrated dew shields and helical individual focusers provide precision control and protection in changing conditions.
CA Residents: Prop 65 WARNING(S)
⭐ Features & Benefits
- Dual 82mm APO Refractor Tubes – Unlock incredible depth, brightness, and 3D realism in your views—both daytime and night sky
- 24x Magnification with 20mm Eyepieces – Wide-angle views ideal for scanning the Milky Way, moon, or terrestrial targets like mountains or shorelines
- 45° Angled Viewing – Observe comfortably for hours without neck strain, even when pointing near zenith
- Fully Waterproof & Fogproof – IPX6-rated magnesium body with nitrogen-purged interior resists the elements, perfect for field or marine use
- Customizable Eyepiece System – Swap out any 1.25" eyepieces for flexible magnification from 18x–60x
- Crystal-Clear Optics with EMD Coatings – Enhanced Multi-Layer Deposition coatings provide superior brightness and contrast
- Helical Focusers & Brass Compression Rings – Smooth, independent focus per eye and secure, tilt-free eyepiece lock
- Built-In Dew Shields & Filter Compatibility – Reduces fog and boosts contrast; accepts 1.25” filters (must use matching pairs)
- Wide Interpupillary Range (54–76mm) – Fits almost all users for a tailored viewing experience
- Mounting Versatility – Includes dual 1/4"-20 and single 3/8"-16 threaded sockets for compatibility with a wide range of tripods
- Portable and Durable – Lightweight magnesium frame with ergonomic carry handle ensures easy setup and transport
🌟 Who It’s For
- Backyard astronomers seeking ultra-comfortable, immersive views
- Nature watchers and boaters needing wide-field terrestrial optics
- Travelers or dark sky enthusiasts looking for binoculars with telescope-class performance
- Visual observers who prefer both eyes for extended, fatigue-free observing sessions
🎯 What You’ll Be Able to See
- Lunar features with crisp shadows: craters, rilles, and ray systems
- Saturn’s rings, Jupiter’s moons, and other planetary details
- Star clusters and bright nebulae like the Double Cluster and Orion
- Terrestrial landmarks across lakes, oceans, or mountainous terrain
- Birds, ships, and wildlife at long distances with vivid color and clarity
🎒 What’s Included
- Explore Scientific BT-82 Binocular Telescope
- Two 20mm Waterproof 62° LER Eyepieces
- Integrated Dew Shields
- Built-in Carrying Handle
(Tripod, filters, and additional eyepieces sold separately)
📦 Total Weight: Approx. 9.9 lbs (4.5 kg)
📌 Eyepiece Barrel Size: 1.25"
🔭 Magnification with Included Eyepieces: 24x
🌌 True Field of View: 2.6°
Specs
| Item Number | 01-14210 |
| Optical Design | Achromatic Refractor, Porro |
| Objective Diameter | 82 mm |
| Focal Length | 470 mm |
| Focal Ratio | f/5.7 |
| Eyepiece Holder | 1.25 in / 31.7 mm |
| Included Eyepieces | 20mm LER, 62° FOV (2x) |
| Magnification | 24x |
| Field of View (°) | 2.6° |
| Exit Pupil | 3.5 mm |
| Eye Relief | 15 mm |
| Waterproof Rating | Yes, IPX6 |
| Housing Material | Magnesium |
| Fogproof | Nitrogen-Purged |
| Dew Shield | Extendable |
| Focusing System | Helical, Individual |
| Interpupillary Range | 54–76 mm |
| Tripod Mount | 2 × 1/4 in, 1 × 3/8 in |
| Total Weight | 4.3 kg / 9.48 lbs |
| Dimensions (L×W×H) | 445 × 226 × 122 mm |
Warranty
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Free Lifetime Collimation Service – Explore Scientific offers complimentary collimation for the life of the binoculars. Customers are responsible for shipping both ways.
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1-Year Limited Warranty – To activate, simply register your product within 60 days of purchase at explorescientific.com.