I have found the ultimate in micropositioning stages and PC based control. These stages are only 1/2" in height, and can be arranged in XY or XYZ configurations. Ideal for Confocal applications. Resolutions from 2 Um to .00781 Um travel ranges from .25" to 2" ... Rotational stages with tables as small as 1". Unreal! The PC based controllers and amplifier systems are so easy to use, just connect them with a single cable, connect the stages and GO! LabVIEW VI's are availble for the controllers, "C" lib's and DLL's are standard. Send E-mail and I'll tell you more. Rik Carty [log in to unmask]