The 78382 Set of Collimating Assemblies collimate the diverging output from a fiber, or focus a collimated beam, into a fiber. These probes are used at the ends of SMA terminated fibers to carry light to or from the Filter and Cuvette Holders for Minispectrometers. The fibers do not include these collimators. Collimators must be ordered separately. The 78382 is a set of 2 Collimating Assemblies.