Nikon TRA-3 8152 1-Inch Tripod or Monopod 1/4-Inch Screw Thread Adapter for Nikon Binoculars (Black)The Nikon TRA 3 8152 Tripod Adapter is the world leader in digital imaging, precision optics, and photo imaging technology and is globally recognized for setting new standards in product design and performance. The unique strength of the Nikon brand is attributable to the company's unwavering commitment to quality, performance, technology, and innovation. The TRA 3 is a tripod or monopod adapter for select Nikon binoculars. The adapter makes it