Shutter speeds

In photography, shutter speed is a common term used to discuss the effective length of time a camera's shutter is open. The total exposure is varied to the exposure time, or duration of light reaching the film or image sensor.
Slower shutter speeds are often selected to suggest movement in a still photograph of a moving subject.
Very fast shutter speeds can cause a moving subject to appear unnaturally frozen. For example, a person could be swinging his/her arms around but on the picture, they appear to be still.
Longer times passes from the moment the shutter opens until it closes when a shutter speed is chosen. More time is obtainable for movement in the topic matter to be recorded by the camera.
A slightly slower shutter speed allows the photographer to introduce an element of blur, either in the subject or where there is a fast moving element in the photographs whereas