Paul Kayfetz prepares HD-video visibility studies and provides foundation expert testimony to get them into evidence, and to explain the results of the studies. He has testified as an expert witness in Engineering Photography more than 500 times across the country. In addition, he is the author, and co-author with Human Factors Experts, of five nationally-published technical papers on these topics. Attorneys retain him for consultation to keep opposing animations/simulations/visibility studies out of evidence − or to use judo to turn them against their promulgator. He also enhances hidden detail from video, and makes measurements from existing photos or video. Paul Kayfetz Inc Engineering Photography is located in Bolinas, California.