Don't put your camera away at the end of the day, night time offers a whole range of opportunities to carry on shooting.
There are some useful techniques and features to understand that are covered in this tutorial.
• Camera shake
• Remote firing
• Mirror lock-up
• Move to Manual
• Bulb exposures
• Noise reduction
• Subjects for night time pictures
Dublin at night, © Shailesh Kulkarni, Canon EOS 500D
It may be obvious to say, but the first thing you will notice is the reduction in light levels. You can make the camera's digital sensor more sensitive to light by increasing the ISO value. You can also shoot with wide lens apertures to increase the amount of light reaching the sensor. But the chances are that you will need to use longer shutter speeds to obtain the correct exposure.
The trouble with longer shutter speeds is camera shake. You cannot keep the camera completely still if you hold it in your hands. Longer shutter speeds do not alter the amount of camera shake, but they do increase the opportunity for it to happen. A longer focal length also increases the effects of camera shake, so one tip for night photography is to use a lens with a short focal length - 18mm or 24mm is good.