The purpose of this is to get those wicked light trails from cars at night by using a long exposure.
ExamplesWhat you need:* A camera which allows you to adjust the shutter speed.
* A steady tripod (or failing that a box or wall).
* A remote shutter release (either wired or wireless) would be handy but not essential.
* Night time!
The TheorySet up you camera on your tripod and get the scene you want composed in the frame and lock everything off so it can't move. Set your camera to shutter priority mode (Tv on Canons) and an ISO of 200 or 400. Don't worry about the aperture as the camera will do this itself in shutter priority mode. The shutter speed you select is a bit trial and error but 10 secs is a good starting point. Then simply press the shutter on your remote and see what you get. If you don't have a remote then set the camera to timer mode, that way you have 10 secs (or however long your camera counts down to) before the shutter opens and you won't risk moving the camera while releasing the shutter button.
Tips* Roundabout you can park on are great for this as are bridges over main roads or bus stops.
* Try and find somewhere with traffic flow in both directions for red and white lights.
* Experiment with shutter speed.
* Don't leave it to late as the more cars that go past the better it'll be!
Nick