A camera basically is a gadget used mainly for the purpose of capturing images. The expression camera emerged from the expression "camera obscura", meaning "dark chamber" according to the Latin language.

Cameras work with the light of the evident spectrum or with other segments of the electromagnetic spectrum. A camera comprises of an enclosed void, with a gap or aperture towards one section so that light can enter along with a recording or screening exterior for capturing the light at the other end.

Nearly all cameras have lenses fixed in façade of the cameras opening to capture the inward light and to focus on the representation. Because of the optical properties of photographic lenses, only articles inside a particular range can be captured. The initially replicas of the camera were invented by well known Muslim scientist Alhazen.