1. A method of creating multiple images, the method comprising the steps of: splitting an image-forming optical beam into a first reflected beam portion and a first transmitted beam portion using a first non-polarizing whole beam beamsplitter; subsequently splitting the first reflected beam portion or the first transmitted beam portion into a second reflected beam portion and a second transmitted beam portion using a second non-polarizing whole beam beamsplitter; the first beamsplitter subsequently splitting the second reflected beam portion into a third reflected beam portion and a third transmitted beam portion; and forming a plurality of images on separate optical detectors from at least some of the beam portions; wherein each beamsplitter produces a reflected beam portion and a transmitted beam portion which are substantially identical.