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Vixen BT-81S-A 80mm Astronomy Binoculars

by Vixen
SKU ES14304
Original price $0.00 - Original price $0.00
Original price $0.00
$1,326.99 - $1,326.99
Current price $1,326.99
In stock

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BT-81S-A 80mm Astronomy Binoculars by Vixen Optics

Discover the celestial wonders with the Vixen BT-81S-A 80mm Astronomy Binoculars. As you gaze through these binoculars, you'll be captivated by the mesmerizing beauty of gas nebulae, star clusters, and comets.

These binoculars are equipped with a high-performance magnesium fluoride coating, meticulously designed to eliminate chromatic aberration and provide you with images of unmatched clarity.

The generous 81mm aperture ensures that every observation is accompanied by razor-sharp details and breathtaking contrast.

What's more, the BT-81S-A binocular telescope set, weighing in at just 4.1 kg, offers unparalleled portability, making it your perfect companion for stargazing adventures.

Additionally, its versatility extends beyond the night sky, making it exceptionally well-suited for terrestrial nature observations, allowing you to explore the world around you in stunning detail.



  • 80mm Dual Objective Lenses: The Vixen BT-81S-A Astronomy Binoculars boast dual 80mm objective lenses, ensuring substantial light collection for exceptional brightness and clarity in celestial observations. This feature allows users to capture detailed views of stars, galaxies, and nebulae with remarkable precision.
  • 157x Highest Useful Magnification: With a highest useful magnification of 157x, these binoculars provide a powerful zoom capability, enabling users to explore celestial wonders in intricate detail. This versatility is ideal for observing a wide range of astronomical objects, from expansive star fields to intricate planetary features.
  • 480mm Focal Length: At f/5.9 strikes a balance between magnification and field of view, making these binoculars optimal for a diverse range of astronomical observations. This configuration ensures clear and detailed views of both nearby and distant celestial subjects.
  • Fully Multi-Coated: The optics feature a fully multi-coated design, enhancing light transmission and minimizing reflections. This results in superior image brightness and contrast, allowing users to enjoy vivid and sharp views of celestial bodies, even in challenging lighting conditions.
  • Aluminum Body: The binoculars are constructed with a durable aluminum body, providing a lightweight yet sturdy frame. This ensures durability and ease of handling during observations, making them suitable for various stargazing locations.
  • 31.7mm (1 1/4 inch) Eyepiece Sockets for Changeable Eyepieces: The inclusion of 31.7mm eyepiece sockets offers versatility in magnification levels, allowing users to customize their viewing experience with interchangeable eyepieces. This standard size enables easy attachment and interchangeability of different eyepieces, catering to various celestial objects and their sizes.
  • Very High Light Intensity Thanks to the Large Aperture: The large 80mm objective lenses significantly increase the amount of light entering the binoculars, resulting in exceptionally bright and detailed views of celestial objects. This enhanced light intensity allows for the observation of fainter celestial phenomena with enhanced visibility.
  • 45 Degree Angled Eyepiece Section: The binoculars feature a 45-degree angled eyepiece section, providing a comfortable viewing experience, especially when observing objects at high angles in the sky. This ergonomic design reduces neck strain, allowing users to enjoy stargazing in a relaxed and comfortable posture.
  • Stable Setup (HF2 / Ladder Table and SXG-HAL130 Tripod): The recommended setup with HF2/Ladder table and SXG-HAL130 tripod ensures a stable platform for the binoculars. This stability minimizes wobbling and shaking during observations, contributing to clear and precise views, particularly at higher magnifications.
  • Included Accessories: The package includes a convenient carry handle for effortless transportation, protective dew caps to shield optics, a precise viewfinder for accurate targeting, and electronic and mechanical components, each backed by limited 1 and 2-year warranties, ensuring lasting performance.

                          What's Included:

                          ✓ Vixen BT-81S-A 80mm Astronomy Binoculars

                          ✓ Carry handle

                          ✓ Dew caps

                          ✓ View finder

                          ✓ Vixen Electronic Parts: Limited 1 Year Warranty

                          ✓ Vixen Mechanical Parts: Limited 2 Year Warranty


                                                          Optical design Achromatic
                                                          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

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