Our X26 optical rail carriers can easily be fixed to any of the four sides of the symmetrical cross-shaped rail providing four parallel work surfaces. Dovetail construction enables fast, easy mounting and secure clamping of carriers at any point along the rail without removing other components. Compatible optical mounts, which include SL Series Gimbal Optical Mounts, SB Series Optic and Lens Barrel Mounts, and SB18YZ Series Lens Positioners, are provided a common optical axis height of 40 mm above the rail surface.