Tim Jenison was interviewed by Leo Laporte on Triangulation (http://twit.tv/show/triangulation/118 http://twit.tv/show/triangulation/118). They start talking ab

Tim Jenison was interviewed by Leo Laporte on Triangulation (http://twit.tv/show/triangulation/118 http://twit.tv/show/triangulation/118). They start talking about it between minutes 35 and 36, and he describes the process in a little more detail, including magnification, distance from the canvas and so forth