An apparatus and method are disclosed for hard-docking of a tester head to a DUT, while permitting the angular alignment of a specimen to be inspected to the optical axis of an optical testing tool. In one example, a system for orthogonal alignment of a specimen to an optical axis of a collection optics...http://www.google.se/patents/US7480051?utm_source=gb-gplus-sharePatent US7480051 - Apparatus and method for hard-docking a tester to a tiltable imager