A device for clamping and unclamping a standing prism pole within a surveying instrument. The method continues with the processing module dispersed storage error encoding one of the set of stored files to produce a plurality of sets of encoded data slices. The method also includes performing a first annealing process on the substrate and the first stress film. These particles can be prepared using double jet precipitation procedures in which vAg is kept constant at a value of equal to or greater than \u221250 mV. Second image data representing a second view of the second location associated with a second orientation is displayed at the first location, the second orientation having a relationship to the first orientation based on the first angular displacement.