Showing Movement in the City
If you want to show the hustle and bustle of a busy city, there's a simple trick that will do just thatslow down your shutter speed and let the people and traffic create motion trails within your image. It's easy (as long as you've got a tripod, which is absolutely required for this effect)just switch your camera's mode to shutter priority and set the shutter speed at either 1/16, 1/8, or 1/4 of a second (you can go longer if you have low enough light that it doesn't blow the highlights out in your photo). Then press the shutter, stand back, and in less than a second the motion of the city will reveal itself as the buildings, statues, lights, and signs stay still, but everything else has motion trails around it. If you're shooting at night, you can really have a blast with motion. Try to find a high vantage point (like from a hotel room window, or on a bridge, etc.) where you have a good view of traffic. Then put your camera on a tripod (an absolute must for this effect to work), go to shutter priority mode, set your exposure to 30 seconds, and take a shot. Thirty seconds later, you'll see long laser-like streaks of red lines (taillights and brake lights) and white lines (from the headlights), and you'll have an amazingly cool image that most folks won't get.