A host of imaging technologies and materials are manufactured by the $22 billion US photography industry. Still and motion cameras (but not video cameras), film, photographic documents and chemicals, and a range of photography-based technology such as photocopiers and scanners are included in the product line of the industry. Digital cameras, which rely on the magnetic storage of images rather than light-sensitive film, and the magnetic storage of images rather than light-sensitive film, were major new products launched in the latter half of the 1990s.