Brand: Orion Telescopes USD

Orion GiantView™ 26x82mm BT45-deg Binocular Telescope (w/case) (51877)


Brand: Orion Telescopes USD

Orion GiantView™ 26x82mm BT45-deg Binocular Telescope (w/case) (51877)


  • 82mm objective lenses provide bright and immersive views of both starry skies and daytime terrestrial scenes
  • Accepts interchangeable 1.25" eyepiece pairs for a variety of magnification options (additional eyepieces sold separately)
  • Included pair of 18mm, 65 eyepieces provide 26x views out of the box
  • Waterproof and nitrogen purged, featuring comfortable 45 eyepiece orientation, and individual eyepiece focusers
  • Weighs 10 pounds
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$1,784.95 USD

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Special Order
$1,784.95 USD

Easy Payment Options with .

How do I Special Order?
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Product Description

With 82mm objective lenses, the Orion GiantView BT-82 Binocular Telescope delivers an immersive experience while still being compact and portable.

Stargazing with both eyes provides an amazing amount of depth while also making observations more relaxing and comfortable. Views of everything from lunar craters to wispy nebulae will take on an almost 3D feel in the GiantView BT-82. These lenses gather 37% more light than 70mm binoculars, so you'll be able to see more objects in the sky with greater clarity. But the fun doesn't stop at sunrise! This binocular telescope becomes the ultimate "spotting scope" for terrestrial exploration during the day. The 45° eyepiece angle makes both daytime and nighttime observations comfortable.

The BT-82 includes a pair of 18mm 65° 1.25" eyepieces which provide 26x magnification and a 2.5° field. The included eyepieces are threaded for 1.25" filters which can be used to enhance the view. Individual eyepiece focus provides precise focus control, while compression rings hold eyepieces securely in place.

Our favorite feature of the BT-82 is its ability to accept pairs of 1.25" eyepieces so you can control power depending on your observing goals. For example, a pair of 10mm eyepieces will deliver a 47x view through the 470mm focal length BT-82. For the best results, we recommend using 8mm or longer focal length 1.25" eyepieces with the BT-82.

Since the GiantView BT-82 accepts eyepieces, you can also use pairs of 1.25" light pollution filters to improve contrast while observing deep sky objects. With light pollution filters installed, the GiantView BT-82 provides incredible views of many deep sky delicacies.

Thanks to its sealed and nitrogen purged body, the rugged BT-82 is waterproof for use in damp conditions, but it's not designed for permanent outdoor installation. The GiantView BT-82 weighs in at 10 lbs. and requires a sturdy tripod for stable support. A built-in threaded 1/4"-20 socket allows secure tripod attachment. Includes hard foam-lined carry case.

What's in the Box

  • Orion GiantView BT-82 Binocular Telescope
  • Two 18mm 65° 1.25" eyepieces
  • Two objective lens caps
  • Two eyepiece caps
  • Hard foam-lined carry case


Best for viewing Lunar & bright deep sky
User level Intermediate
Magnification 26x
Optical diameter 82mm
Field of view - angular 2.5°
Field of view - linear 63.2 ft./1000 yd
Apparent field of view 65.0°
Eye relief 17.0mm
Exit pupil 3.1mm
Near focus 60 ft.
Coatings Fully multi-coated
Prism BAK-4 Porro
Interpupillary distance range 55mm - 80mm
Focus style Individual eyepiece focus
Waterproof Yes
Tripod adaptable Yes
Diopter adjustment Yes
Weight 10.0 lbs.
Height 4.9 in.
Additional included accessories
  • 18mm eyepieces (set of two)
  • Carry handle
  • Eyepiece and objective lens caps
Other features
  • Nitrogen purged
  • Interchangeable eyepieces
  • Waterproof
Warranty One year

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