Product Description This Original Nikon 7806 Binoculars Tripod Adapter fits Nikon E2, Superior E, Astronomy Series and Zoom XL binoculars to any standard tripod. Amazon.com The Nikon binocular tripod adapter easily mounts your Nikon E2, Superior E, Astronomy series, or Zoom XL binocular onto a tripod. It works with any tripod head with a 1/4 inch 20-threaded screw. You can also use it with any other binocular that has a central shaft with a maximum diameter of 14-millimeters. Weighing only 0.42 pounds, the tripod adapter is remarkably well-balanced.