Profile: Siskiyou Corp. provides micromanipulators, microscope sample positioners, motion control systems & modular opto-mechanical building blocks to life science and photonics researchers. The 500MM series of open loop actuators are designed specifically for driving our line of mirror mounts. Their compact design minimizes interference to other devices in the area. The simple design uses a quiet running DC servo motor, that is very stable even when powered down. The OFT optical focus translator allows the user to simply adjust the focus of an optic along the optical axis. The simple cam design is able to translate 0.25-inch in 30° of rotation of the focusing lever.