A few people said they were interested in the technique I used for my 'Painting with light' photo in Dgrin Challenge 36. If you have any questions, you can find me here at Digital Grin.
-- Dave Parry What you will need... - Torch, I used a small MagLite - Paintbrush - Roll of Aluminium foil -Tripod mounted camera (of course) - Wired remote (optional)
With my camera set to manual, F/8, 5 secs and focused to infinity.
I held the torch and the paintbrush together as shown here. Pressed the shutter button. Held the MagLite still for about 1 sec, and then moved it away from the paintbrush as shown.