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photography, what is shutter speed, It is expressed in f-numbers like f/1…
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what is shutter speed
shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light
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It is expressed in f-numbers like f/1.4, f/2, f/2.8 and so on to express the size of the lens opening, which can be controlled through the lens or the camera.
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The disadvantages are that you tend to get shallow depth of field in dim lighting; much greater depth of field results when the light is strong. If a particular aperture is required to control depth of field, the shutter speed dial must be adjusted until the viewfinder meter display shows the aperture you need