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https://www.instagram.com/_clicksaroundtheworld_/ Photography By Jay Bharti ( https://www.instagram.com/bhartijay/ ) DAILY FEATURES Follow _clicksaroundtheworld_ ( https://www.instagram.com/_clicksaroundtheworld_/ ) On Instagram To See Amazing Creativity By The Photographers. DM Us For More Details SHUTTER In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a light-sensitive electronic sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses of light to pass outwards, as seen in a movie projector or a signal lamp. A shutter of variable speed is used to control exposure time of the film. The shutter is so constructed that it automatically closes after a certain required time interval. The speed of the shutter is controlled by a ring outside the camera, on which various timings are marked.