Vixen Astronomy Binoculars BT81SA – Goliath Outdoor Adventures

Vixen Astronomy Binoculars BT81SA

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  • Regular price $1,499.95

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The Vixen BT-81S-A binoculars are a high-quality astronomical instrument that provides stunning views of the night sky. They feature two 81mm achromatic object lenses that gather 300% more light than the naked eye, resulting in brighter and more detailed images. The binoculars also have 45° angled eyepiece holders that make it comfortable to observe for long periods of time.

Each eyepiece holder can accommodate 1.25" eyepieces, so you can easily switch between different magnifications depending on the object you're observing. The binoculars also come with a carry handle for easy transport.

Here are some of the key features of the Vixen BT-81S-A binoculars:

  • 81mm achromatic object lenses
  • 480mm focal length
  • 31.7mm (1 1/4 inch) eyepiece sockets
  • Very high light intensity thanks to the large aperture
  • 3-dimensional viewing with both eyes
  • Carry handle included
  • Dimensions: 480 x 190 x 155 mm / weight: 4.1 kg

Here are some of the technical specifications of the Vixen BT-81S-A binoculars:

  • Optical design: Refractor telescope
  • Resolution and limiting magnitude: 1.43 arc seconds, 11.3
  • Focal length: 480 mm (f/5.9)
  • Type of coating: Fully multi-coated
  • Color of coating: Blue
  • Body material: Aluminum
  • Adapter and connections: 31.7 mm clamp
  • Dimensions and weight: 480 x 190 x 155 mm; 4.1 kg

If you're looking for a high-quality astronomical binocular that will provide you with stunning views of the night sky, the Vixen BT-81S-A is a great option. It's perfect for both beginners and experienced astronomers alike.



Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:

Vixen Electronic Parts: Limited One Year Warranty

Vixen Mechanical Parts: Limited Two Year Warranty

CA Residents: Prop 65 WARNING(S)

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