I'm an amateur filmmaker....I know it's ideal to be able to manually focus things, but I'm shooting a lot of people that walk spontaneously all over the place, with me walking as well. Autofocus is probably the way to go, right? But when in autofocus, my picture sometimes blurs out for like 2-3 seconds, which I don't want to happen. What do reality shows like "The Real World" use would you say? They're walking around everywhere with people going everywhere, without that "blur" happening. THANK YOU!