Edmund Optics Inc. in Barrington, N.J., is offering a family of beam expanders with high-performance optical designs packaged in a precise optomechanical platform. Two full rotations of the focus knurl provide smooth movement for the optics to vary the output from collimated to the minimum focus distance of 1.2 meters. The precise focusing mechanism keeps optics from rotating, which helps maintain bore sight accuracy and a minimally aberrated focused beam. Edmund manufactures optics and optical components. For more information contact Edmund online at www.edmundoptics.com.