The trick to coming up with broken movement of lights is using a black card as a shutter, in and out of the front of the lens. I had my UZ on a mini pod clamped to the tripod so I could work two cameras at a time. see Pbase: http://www.pbase.com/jeepertom/fz_fireworks_july_4th_2008 http://www.pbase.com/jeepertom/uz_july_4th_2008 copy and paste if needed