Used Vixen BT81SA, 81mm Giant Binocular with Fork Mount & Swing Arm,and Tripod.

• The Vixen Astronomical Observation Binoculars offer large, light-grabbing 81mm aperture lens with interchangeable eyepieces. Nothing beats the ease and comfort of erect image binocular viewing. Eyepieces are smartly angled at 45½ for convenient observing. These quality instruments offer a fantastic view of the night sky and terrestrial vistas. Works with many popular 1½" eyepieces including Vixen LV and LVW models. Intraocular distance can be adjusted 56mm to 76mm. The binoculars are available as bodies only or can be purchased as a package on the Vixen Fork Mount. A handle makes these binoculars easy to carry. A built-in dovetail allows quick mounting on Vixen and compatible equatorial mounts to create a tracking or goto binocular system -- you'll be the envy of the observing field!