RSP Series Rotation Mounts feature full ball bearing races and can be coarsely aligned using the knurled edge of the rotating platform. Fine adjustment, with 4 arc-minute sensitivity, is made easily with a top mounted knob. Position can be locked in place securely with the little screw in the center of the knob. Position is indicated in 2° increment markings around the top circumference.

RSP Series Rotation Mounts can be post mounted in vertical configuration using the tapped holes on the side of the frame. Alternatively, they can be used as a stage and directly mounted to optical table, breadboard, or other stage using two counter bored clearance holes on diagonal corners. Aperture inserts and are available to make them a solid platform for on-axis mounting and rotation of optical component supported by an optical post.