While crossing the junction between Desa Sri Hartamas and Sri Hartamas, I found the perfect prop for a nice long exposure shot. This wasn’t the effect I wanted, but the dude waiting there was cool. This effect was brought to you by Manual mode with 10 second exposure, F8.0, ISO 50, and a circular polarizer to drop it one stop.
And this, a successful attempt at the effect – same settings, but I changed to a 15 second exposure because I kept miscounting how long the green light would stay on. I could actually get green, yellow and red in a 6 second exposure, if I took the picture 2 seconds before it turned yellow, but I was lazy to wait (having miscounted a few traffic light cycles before), so I cheated and did a 15 second one so that the chances of me getting a green-yellow-red shot were higher. Pictures were also darkened to add drama.
If you want to do this same effect, I suggest you find a junction which switches lights fast, like a small T-junction out of town. It would help to have a railing or a power supply box to use as a makeshift tripod. Better still, zoom in on a traffic light for artistic effect.