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Long-exposure, time-exposure, or slow-shutter photography involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements. Long-exposure photography captures one element that conventional photography does not: an extended period of time.
For example, a long exposure refers to a single, long shutter cycle to gather enough dim light, whereas a multiple exposure involves a series of shutter cycles, effectively layering a series of photographs in one image. The accumulated photometric exposure (H v) is the same so long as the total exposure time is the same.
Typical exposure times range from 15 minutes to many hours long, depending on the desired length of the star trail arcs for the image. [7] Even though star trail pictures are created under low-light conditions, long exposure times allow fast films, such as ISO 200 and ISO 400. [6] Wide-apertures, such as f/5.6 and f/4, are recommended for star ...
Night photography (also called nighttime photography) is the capturing of images outdoors between dusk and dawn. Night photographers generally have a choice between using artificial lighting and using a long exposure , exposing the shot for seconds, minutes, or hours in order to capture enough light to record an image.
Fireworks photography is the process of taking photographs of fireworks at night. It is a type of night photography, specifically using available light of the fireworks instead of artificial light. Without using the flash on the camera, the photographer often exposes the image for a period of time, known as long exposure.
For example, the camera will be set up to expose a frame for 1 ⁄ 50 second every 30 seconds. Such a setup will create the effect of an extremely tight shutter angle giving the resulting film a stop-motion animation quality. In long exposure time-lapse, the exposure time will approximate the effects of a normal shutter angle.
Light painting inside an abandoned limestone quarry in France. Light painting, painting with light, light drawing, light art performance photography, or sometimes also freezelight are terms that describe photographic techniques of moving a light source while taking a long-exposure photograph, either to illuminate a subject or space, or to shine light at the camera to 'draw', or by moving the ...
A very long exposure in the camera was required. Sunlight strikes the buildings on opposite sides, suggesting an exposure that lasted about eight hours, which has become the traditional estimate; however, a modern researcher who studied Niépce's notes and recreated his processes found that the exposure must have continued for several days. [10]