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Explore Scientific BT-100 SF 100mm Waterproof Porro Prism Large Binocular with 62 Degree LER Eyepieces

SKU: ES0114220 MFR: 01-14220
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Key Features

  • Enjoy superior views with these Explore Scientific 100mm binoculars, waterproof for outdoor use.
  • Experience bright, clear images with enhanced multilayer deposition (EMD) lens quality on these binoculars.
  • These porro prism binoculars offer a wide 2.3° field of view, perfect for birdwatching or astronomy.
  • Durable magnesium housing ensures these large binoculars can withstand rugged conditions and last for years.
  • With 62° LER eyepieces, these binoculars provide comfortable viewing, even for those wearing glasses.
  • The 100mm objective lens gathers ample light, making these binoculars ideal for low-light conditions.
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Special Order?Estimated to Ship: 08/19/2025
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Explore Scientific BT-100 SF Specifications

  • Optical Design

    Achromatic refractor Porro

  • Housing Material

    Magnesium

  • Mirror / Lens Diameter

    100 mm

  • Focal Length

    550 mm

  • Focal Ratio

    5.5

  • Apparent Facial Field

    62 degrees

  • Type of Remuneration

    Enhanced Multilayer Desposition (EMD)

  • Exit Pupil min.

    3.6 mm

  • Field of View

    2.3 degrees

  • Waterproof

    Yes

  • Water Resistance Protection Level

    IPX6

  • Exit Pupil Distance

    15 mm

  • Dimensions

    20.4 x 10.6 x 6.1" (520 x 270 x 155mm)

  • Weight

    14.99 lbs (6.8kg)

  • UPC Code

    811803033948

2 Accessories for Explore Scientific BT-100 SF 100mm Waterproof Porro Prism Large Binocular with 62 Degree LER Eyepieces

  • All Accessories (2)
  • Cleaning Accessories (1)
  • Brackets & Mounts (1)

About Explore Scientific BT-100 SF

Be prepared to experience the world in a whole new way with the BT-100 SF 100mm Waterproof Porro Prism Large Binocular with 62 Degree LER Eyepieces. This advanced, high-quality binocular is designed for those who appreciate the beauty of the starry sky, the intricacies of nature, and the vastness of landscapes.

Whether you're an avid birdwatcher, a nature enthusiast, or an amateur astronomer, this binocular brings you closer to the action. Its large, light-gathering lenses and professional coatings produce bright, brilliant images, even in low light conditions. From globular star clusters and glowing gas nebulae to distant ships and airplanes, everything is within your reach.

The BT-100 SF binocular is not just a viewing device; it's a double refractor telescope that offers the full light-gathering power for each eye. This design results in a more vivid, almost three-dimensional viewing experience. Observing with both eyes is not only more relaxed but also enhances the recognition of the finest details and effectively prevents rapid eye fatigue.

Built for the outdoors, this binocular is extremely robust with a lightweight magnesium housing. It's designed to withstand tough conditions with an IPX6 sealed and nitrogen-filled design that prevents fogging of the internal optics. The waterproof feature makes it suitable for use in various weather conditions.

The binocular comes with two EXPLORE SCIENTIFIC 20mm eyepieces of the 62-degree LER series, offering a wide field of view and a comfortable viewing experience. These eyepieces are interchangeable, allowing you to adjust the magnification and field of view to your individual needs.

The comfortable 45-degree viewing angle allows for a relaxed observation position, even when the binoculars are tilted strongly. The binocular also features extendable dew caps to prevent fogging of the outer objective lenses and shield additional control light coming in from the side.

The BT-100 SF binocular is easy to handle, thanks to the integrated carrying handle located at the center of gravity. It can be mounted on a sturdy photo tripod for stable viewing.

Experience the world in stunning detail with the BT-100 SF 100mm Waterproof Porro Prism Large Binocular with 62 Degree LER Eyepieces. It's more than just a binocular; it's your gateway to the wonders of the universe.

Explore Scientific BT-100 SF Features

  • Powerful large binoculars with a 100 mm objective diameter and 560 mm focal length
  • Observe the moon, the planets and bright deep sky objects in the night sky as well as terrestrial targets
  • Extremely robust binoculars, sealed and filled with nitrogen
  • Convenient 45-degree view and individual focusing
  • Carrying handle makes it easier to transport the binocular and ensures a secure hold during tripod assembly
  • Includes two premium waterproof Explore Scientific 62 degree 20mm LER eyepieces
  • Eyepiece holder 1.25 inch / 31.7mm, interchangeable eyepieces
  • Extendable dew caps minimize condensation on the lenses
  • Tripod connection: 2 x 1/4 inch and 1 x 3/8 inch photo thread

Key Features

  • Enjoy superior views with these Explore Scientific 100mm binoculars, waterproof for outdoor use.
  • Experience bright, clear images with enhanced multilayer deposition (EMD) lens quality on these binoculars.
  • These porro prism binoculars offer a wide 2.3° field of view, perfect for birdwatching or astronomy.
  • Durable magnesium housing ensures these large binoculars can withstand rugged conditions and last for years.
  • With 62° LER eyepieces, these binoculars provide comfortable viewing, even for those wearing glasses.
  • The 100mm objective lens gathers ample light, making these binoculars ideal for low-light conditions.

What's in the box:

  • Explore Scientific BT-100 SF 100mm Waterproof Porro Prism Large Binocular
  • 2x 62 degree LER Eyepieces
  • Manual
  • Explore Scientific 1 Year Limited Warranty (Lifetime Limited Warranty with Registration)