jimlux@earthlink.net said: > What I need is that really boring single camera watching from a single > viewpoint with a high resolution counter in the field of view. The "big > countdown clock" at KSC doesn't show fractions of a second. What's the technology for that clock? I'll guess that was before LEDs so they probably used glowing metal. How long does that take to heat up when a segment turns on or cool down when a segment turns off? Could you recover the camera frame offset by carefully examining the intensity in a few frames around each second tick? -- These are my opinions. I hate spam.