Thilo Weigel wrote: > Hi Gerd, > Thanks for the fast reply! > So a half-frame is actually taken 20ms before the time of its timestamp? > (with a PAL camera, 50 half-frames a second) Or does it take less than > 20ms (PAL) to transmit the half-frame from the camera to the > frame-grabber? Don't know how the cameras do work internally, but the 20ms difference likely comes close. Gerd -- You can't please everybody. And usually if you _try_ to please everybody, the end result is one big mess. -- Linus Torvalds, 2002-04-20