Vixen's 81mm astronomy binocular delivers crystal clear, sharp views through its new optical design. Its lightweight body ensures that you can take it to any observing location. The air-spaced doublet optics in this 81mm binocular are magnesium fluoride coated to help reduce the effects of chromatic aberration.
Please note you will need additional eyepieces to use these binoculars and we would recommend two SLV 25mm eyepieces (SRP £278).
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. Use with Vixen's SLV Eyepieces for fantastic views.
* 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