Greetings all, I'd be interested to hear which types of camcorders coilers have found to be best for videotaping their coiling work and sparks. 1. are certain brands or models more immune to RF interference? 2. does price matter? 3. are special features such as fast shutters, etc of any value? 4. is it necessary to have manual focus capability? 5. are there certain brands, models, or features to avoid? 6. other comments? Thanks, John Freau