With additional equipment, electronic images can also be sent over telephone lines or printed on paper. Today, many amateur moviemakers use portable video cameras called camcorders. These cameras convert light reflected by the subject into electronic signals that are recorded on magnetic tape. Most movie cameras and camcorders can record sound at the same time as they record images. Most of them also have a zoom lens.
Stereo cameras produce images that seem to have depth.
One kind of stereo camera has two identical picture-taking lens systems with matched shutters. When viewed through special glasses or a device called a stereoscope the two pictures blend into one image that seems to have depth. Lawrence R. White, B.S., Publisher, Hyperzine Communications. How to cite this article.