I am not sure this is absolutely legal or not but I wrote an article that served as the basis for one published in an encyclopedia and it struck me that possibly some might be interested in checking it out even though they might not want to buy the whole book! so, I placed it online: An Overview of High Speed Photographic Imaging available at: http://www.rit.edu/~andpph/text-hs-overview.html g'day! andy