Mini Rotation Stage 7R7 provides smooth, low friction 360° rotation. A micrometer driving screw renders resolution 1'. A clear aperture of Ø 15 mm allows attachment of lenses and filters directly in front of the stage. A removable ring (included) could be screwed into the aperture. The ring's hole is of Ø6.5 mm, you can put an M6 screw from underneath to mount some component directly onto the stage. 7R7 could be mounted to optical rails using rail carriers. "Clear top" design allows attachment of larger components.