ALIO's Micron 2 Minature Linear Motion Product 

ALIO's M2 products for sub - micron precision from miniature stage. as shown 4 mm travel, 40 nm repeatability and 0.7 microns accuracy.
The Miniature line shown with a customer lens mount can be configured in many formats to allow for lens or product positioning below 50 nm over 2 to 10 mm of travel.