The camara

• Camera obscura - is an optical device that projects an image of its surroundings on a screen

•  Camera lens - is an optical lens  or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.

• Photographic film - is a sheet of plastic coated with an emulsion containing light-sensitive silver halide salts with variable crystal sizes that determine the sensitivity, contrast and resolution of the film.

• Shutter button - is a button found on many cameras, used to take a picture.When pressed, the shutter of the camera is "released", so that it opens to capture a picture, and then closes, allowing an exposure time as determined by the shutter speed setting.