Make a great view even better with Vixen's NEW BT81S-A Binocular Telescope. You will see spectacular views of comets and star clusters. The Magnesium Fluoride coated, air space doublet design, dramatically recuces chromatic aberration for magnificent views. This large aperture, 81mm binoculars, deliver crisp, clear images.
The BT81S-A Binocular Telescope is very portable, at just 9 lbs in weight, so that it can easily be taken to all your observing locations.
- Aperture Ratio F/5.9
- Aperture : 81mm (3.1")
- Focal length - 480mm.
- Resolving Power: 1.43 arc sec.
- Light Gathering: 134x
- Interpupillary Distance: 2.2" to 4"
- Mount Block: Dovetail Bar for SX/GP Tripods
- Visual Back: 31.7 mm - Friction Fit
- Dimensions: 18.9 x 7.4 x 6 inches
- Features: Carry Handle, Finder Bracket
- Weight : 9 lbs
Only ships in contiguous USA.
Dimensions & Specifications
With Tripod & Fork Mount and 25mm Eyepieces
Vixen Binocular Telescope
Objective Lens Diameter
Porro Prism Binoculars
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Default manufacturer warranty.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.