Boredom, String and a Maglite

As the title suggests, the three elements above came together tonight in an explosion of silliness. My daughter and I suspended a maglite torch (with the head removed - just the bare bulb) from the cross piece of a backdrop stand by some string. We set the camera on the floor looking straight up, put it on bulb mode (f22 and ISO 100) and then swung the torch in as close to an arc as we could. We used exposures in and around 1 minute for these. The plain light trials were then exported into photoshop and layered with a rainbow gradient layer (using multiply mode) to produce the final effect.

The first one is mine, the second is the work of a rather precocious 10 year old.