This is a work in progress. I'm try to see how slow I can make a model train pull a GoPro Hero HD camera around a model train track. In this sequence the GoPro is shooting a frame every 5 seconds, so the whole sequence is about 75 minutes capture time for 36 seconds of time-lapse. I need to make the train to go slower still for a longer capture interval, so my 120:1 geared down motor is not good enough. So going to try for higher gear ratios and if that fails, stepper motors. JPEG sequence converted to CineForm AVI using the free GoPro CineForm Studio.