• White telescope with black lenses on a white background
  • White telescope with dual eyepieces on a white background
  • A promotional graphic with a white rounded square and dark purple border, featuring an illustration of hands holding a shield with a blue water droplet. Text reads 'Robust, All-Weather Design' and describes sealed, nitrogen-filled magnesium housing for waterproof and fog-proof performance.
  • A promotional graphic with a rounded white square and dark purple border. Inside, a circular icon shows a caliper above the text 'Fully Customizable Optical Experience' and descriptive copy about two premium 62° 20mm LER eyepieces and interchangeable 1.
  • An informational graphic with a white rounded square and purple border, featuring a magnifying glass icon and text that reads 'Comfortable, Ergonomic Viewing' and describes a 45-degree viewing angle, soft silicone eyecups, and helical individual focusing.
  • A purple and white informational graphic with a lightbulb icon and the text 'Extraordinary Light-Gathering Power,' plus descriptive copy about a 120mm objective diameter and 660mm focal length.

Explore Scientific

BT-120 SF Large Binoculars with 62 Degree LER Eyepieces

BT-120 SF Large Binoculars with 62 Degree LER Eyepieces

SKU: 01-14230

Price: $2,499.99 USD
List Price:
Price: $2,499.99 USD
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Panoramic Wide-Field Clarity & Immersive Stargazing Comfort

Experience breathtaking wide-field views of the universe with an optical system engineered for maximum visual comfort and clarity. The BT-120 SF Large Binoculars with 62 Degree LER Eyepieces feature a generous 120mm objective aperture that collects immense light to reveal intricate details across nebulae, star clusters, and landscape horizons. Outfitted with premium 62-degree Long Eye Relief (LER) eyepieces and ergonomic 45-degree angled oculars, this setup provides high-contrast, edge-to-edge sharp images that accommodate glass wearers effortlessly. Whether scanning distant celestial fields or expansive terrestrial vistas, the BT-120 SF Large Binoculars with 62 Degree LER Eyepieces deliver an unbeatable 3D viewing experience for hours on end without fatigue.

Features & Benefits

🔭 Massive 120mm Aperture: Captures superior light to render bright, highly detailed views of deep-space and low-light targets.

👁️ 62° Wide-Field LER Eyepieces: Delivers an expansive view with long eye relief for fatigue-free observation, even when wearing glasses.

📐 Ergonomic 45-Degree Viewing Angle: Eliminates neck strain during high-altitude celestial viewing and prolonged field scanning.

👀 Dual-Eye Natural Perspective: Natural binocular viewing unlocks superior depth perception and contrast compared to single-tube scopes.

🛡️ Durable Weather-Resistant Build: Precision-machined housing keeps internal optics perfectly aligned during field sessions.

Designed to fuel your passion for discovery, this ultimate wide-field optical system turns every night sky into an immersive celestial theater. Uncover the depth and beauty of the cosmos with the unparalleled performance of the BT-120 SF Large Binoculars with 62 Degree LER Eyepieces.

Perfect For:

Perfect For:

  • Tourist Attractions
  • Forestry
  • Boats & Ships
  • Deep-Space Galaxy & Nebula Hopping
  • Eyeglass-Friendly Stargazing
  • Long-Distance Horizon & Marine Scanning
Product Specs:

 

Specification Detail
Item Number 01-14230
Optical Design Achromatic Refractor Porro
Lens Diameter 120 mm
Focal Length 660 mm
Focal Ratio f/5.5
Apparent Field of View 62°
Coating Type Enhanced Multilayer Deposition (EMD)
Exit Pupil Min 3.6 mm
Field of View 1.8°
Waterproof Yes
Protection Level IPX6 Water Resistant
Eye Relief (Exit Pupil Distance) 15 mm
Dimensions (L x W x H) 654 mm x 290 mm x 156 mm (25.7" x 11.4" x 6.1")
Total Net Weight 8300 g (18.3 lbs)
Housing Material Lightweight Magnesium

 

Product Manual & Resources

Product Manual

Product Warranty 

This product comes with a limited warranty. Click Here to view the full Explore Scientific Warranty Policy.

Warnings

⚠️ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

⚠️ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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