Our zoom housings for optics and lens tubes offer precise adjustment and compatibility with SM1-threaded systems and 30 mm cage systems. Available in two sizes with travel ranges of 10 mm and 50.8 mm, these housings feature SM1 external threads for easy integration with other components. The SM1 internal threads accommodate optics up to 7 mm thick, secured with an included retaining ring. An M2.5 tightening setscrew enables smooth adjustment and secure locking, making these housings versatile for dynamic optical setups.