I am doing a video tutorial for an online site. I can't seem to get the settings right to get a good video. I'm guessing that it is something to do with the auto focus, but can't figure out what. I tried a few manual settings but couldn't get any good results that way either. The camera is on a tripod. I am filming a machine that is performing a digital cut. The mat goes back and forth into the machine and I am guessing that might also be a factor. Any suggestions? I have made videos before and have not had problems.