Lens Tube Adapter SM1-8V

The LBTEK SM1-12.5T consists of a 12.5 mm long through-body external thread adapter and two SM1NR locking external retaining rings, allowing flexible adjustment of the connection component's position and rotation angle along the optical axis. The SM1NR and SM1LR are used to lock the connection component in place, with the difference being that the SM1LR features both a knurled housing and wrench flats for use with the PCW-A wrench. The external retaining rings have a straight knurled design for ease of tightening and secure locking, and the SM1NR locking rings can be purchased separately. The SM1-8V features an internal and external thread structure, with an external thread length of 12.5 mm and includes one SM1NR external retaining ring, allowing for a maximum adjustment range of 7.7 mm. The internal thread length is 12.5 mm and comes with one SM1R retaining ring.