Closed Shutter

Shutter (photography)

In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital 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 constructed so that it automatically closes after a certain required time interval. The speed of the shutter is controlled either automatically by the camera based on the overall settings of the camera, manually through digital settings, or manually by a ring outside the camera on which various timings are marked.

closed

Adjective

1. Physically obstructed, sealed, etc.

Verb

1. simple past and past participle of close

shutter

Noun

1. One who shuts or closes something.
2. Each of a series of protective panels, usually wooden, placed over windows to block out the light.

Verb

1. To close shutters covering.
2. To close up (a building) for a prolonged period of inoccupancy.