Abstract: A system and method modifying wavefront shape is provided. Generally, the system contains a wavefront shape modifying device for modifying the shape of the wavefront. The system also contains a series of optical devices for returning the modified wavefront to the wavefront modifying device with an orientation that enables further modification of the modified wavefront by the wavefront modifying device. The method contains the steps of: reflecting a wavefront from a surface of a wavefront shape modifying device, resulting in the wavefront having a modified shape; and reflecting the wavefront having a modified shape from the surface of the wavefront shape modifying device a second time resulting in a final wavefront having a shape that has been modified twice.