> I thought they used some type of gyro, and I was Hmm. I don't really know much about the cameras, but I didn't think that they used gyros. My understanding was that they had an "oversized" ccd, and only used a (NTSC sized) subregion of the full ccd to form the image. There are algs. that have been developed to detect camera movement from sequences of images...I figured they detected movement and corrected for it by moving the image region around within the ccd space. -Steve -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST