Lomography
A type of exposure in which the shutter of the camera is left open for a considerable amount of time. It is possible to use it during the day to blur the movement of water in a river that is running through a scene, or it can be used during the night to catch movement, such as the lights of cars driving on a highway or star trails. In order to avoid overexposure when taking photos with long exposures during the day, photographers typically employ the use of a neutral density (ND) filter.
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