One film technique that separates the pros from the amateurs is the tracking or dolly shot. With a tracking shot, the camera moves along a track, providing a sense of motion that isn't possible with a static camera. Glidetrack pioneered a portable camera slider (AKA track) in 2008, and now the company is taking pre-orders for a relatively inexpensive (US$135 introductory price) device called the mobislyder that's designed for shooting video with the iPhone, iPod touch, and other small cameras.
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