This photo is the most technically complex of all I have taken. It was made after sunset, so all of the light you see here - except for the warm glow in the sky - was supplied by moi.

I set up three small battery-powered flash units on the ground behind the skater. On these flash units I taped blue gels, which make the blue color on the inside edges of the tubes.

Then I set up another flash in front of the skater (camera left) and covered it with an amber gel to color the light illuminating him. At the moment I pushed the shutter button I fired one flash, which triggered all of the others using remote control devices. It worked.