Newport\'s CYM-2R can hold and position cylindrical optics as large as 2-in in height. What makes this mount unique is its ability to rotate a cylindrical optic about its center. This feature eliminates unwanted translation during rotation of the power axis. 100-TPI adjustment screws provide ±5° roll adjustment range with a sensitivity of 6 arc seconds. The CYM-2R is post-mountable, with a mounting hole that accepts 8-32 or M4 screws. With the use of adapters (sold separately), other sizes of cylindrical optics can also be held. Adaptors are available to mount 1/4-in., 1/2-in., 1-in and 19-mm high cylindrical optics. Each one of these adaptors places the center of the cylindrical lens at the axis of rotation and has a location pin for quick installation.