I shot it digitally (Nikon D70). Trick is high F number, a tripod and time. The shots you see above are shot at F18. I set the camera to manual focus, autofocus just won't work. Then uses the remote control to open and close the shutter at will (shutter speed set to 'bulb'). These shots have an exposure time of somewhere 5-11 seconds. These exposure times give you the streaks and flowers. Then all it takes is a bit of feeling and luck. Just watch the streamers go up and open it up right before the blast, keeping it open for as long as you want (a few bursts).

What is a friend? A single soul dwelling in two bodies. - Aristotle
-= Glass Eye Photography =- -= My Rendo Gallery =-