Taken in my shed last week while replacing bulging capacitors in an LCD monitor. I thought the smoke from the soldering looked interesting enough to warrant some photos.

I put the camera on the bench, with a bit of scrap wood under the lens to lift it up slightly. A 580EX II was on a light stand at camera left, firing into a reflective umbrella, and a 430EX was at camera right, bouncing off the shed wall. Both flashes were triggered with a Canon ST-E2.

soldering smoke

back yard at home, Western Australia
Canon EOS 50D, 24-70mm f/2.8L @45mm, 1/100 sec, f/5, ISO250

There's another photo taken from a slightly different angle here.