Product Overview
Take a look through the new Vixen BT-81S-A binoculars. You will be impressed when you use them to observe gas nebula, star clusters or comets.
The magnesium fluoride coating reduces chromatic aberration and the large aperture of 81 mm ensures a razor-sharp, contrast-rich image. The BT-81S-A binocular telescope set weighs 4.1 kg, is portable and also exceptionally suited for nature observations.
Specifications
| 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 |
