Shutter speeds is “the amount of time that the shutter is open”. In the film photography it was the length of time that the film was exposed to the scene you’ve photographing and similarly in digital photography shutter speed is the length of time that your image sensor “see” that scene you’re attempting to capture.
Shutter speed is measured in seconds – or in most cases fraction of seconds. The bigger the denominator the faster the speed.
Shutter speeds in camera will usually double approximately with each setting.
Shutter speeds – 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8 etc. this doubles the amount of light that is let in – as a result increasing shutter speed by one stop and decreasing aperture by one stop.
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