Camera

A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound, such as with video cameras. The name is derived from camera obscura, Latin for "dark chamber", an early mechanism for projecting images in which an entire room functioned much as the internal workings of a modern photographic camera, except there was no way at this time to record the image short of manually tracing it. Cameras may work with the visual spectrum or other portions of the electromagnetic spectrum.

External Links

• Camerapedia: a free-content encyclopedia of camera information
• Pinhole camera for tree photography