Founded in 2001 by Russel Lederman and based in Maryland, USA, the company formed to market the 3D eyepieces developed by Russel Lederman, which are also available under the brand name Binotron. A small but absolutely top-quality and unique product range allows you to experience the universe in 3D! The Denkmeier portfolio includes eyepieces, star diagonals for solar observing and correctors, as well as the exclusive Spacewalker 3D binoculars and Binotron optics.