On Apr 18, 2007, at 7:05 AM, Philip Pemberton wrote: >>> But why is the prop not blurred? > > The blur is just > because the camera's panning to keep the plane sharp... Effective panning speed is greater than prop tip speed? That seems ... unlikely. Perhaps the stunt includes having the motor off :-) BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist