Shutter speed, also known as the exposure time, is basically the length of time the shutter of the camera is open. This, together with the Aperture, will determine the amount of light that will reach the film or sensor. Setting the correct Aperture and Shutter Speed will result in a correctly exposed photograph. A very fast shutter speed can be used to freeze fast-moving subjects,
whereas a slow shutter speed can be used to intentionally blur subjects.
I will now try to demonstrate by showing some photographs I took.
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| Shutter Speed of 1/80 |
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| Shutter Speed of 1/4 |
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| Shutter Speed of 2"5 |
The following photographs were taken at night, on the field near my house, using a torch to create all sort of patterns. Because the shutter speed was so slow, the camera wasn't able to record the person waving the torch.
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| Shutter Speed of 10" |
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| Shutter Speed of 10" |
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| Shutter Speed of 4" |
I hope this explains a little bit what Shutter Speed means and how it works.
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