RE: Ask the photographers!

I am the lightpainter, but it doesn't mean that I necessary have a lamp in hand. In lightpainting, we work on both sides of the camera. I can do perfect circles by hand but it would have been impossible to do so many of them, with such different diameters.

I simply use a gimbal head to do it. And sometimes, I put lights on the gimbal head with fixed camera...and I can do both too (make the camera rotate and the lamps rotate). The only limit is your imagination ;)