Shutter speed settings allow you to regulate how long the shutter is open for. The shutter is a moveable plane that blocks light from reaching the image sensor - think of it as a door that is usually closed but opens briefly to allow light in, then closes again (teacher demo with Canon DSLR). The longer the shutter is open the blurrier your subject will be. The shorter your shutter is open the more frozen in motion your subject will be. See the example diagrams here.
The longer the shutter remains open the more light that enters the camera and the shorter the time the less light that enters the camera. Shutter speeds range from tiny fractions of a second, 1/2000 second for example, to much longer time exposures like a minute or more.
Human motion and water splashing can be frozen around 1/400 or 1/500 second. You can get a good blur at 1/4 second to 1"-2" second.
Your task: Explore and experiment with shutter speed on your own camera or the class Nikon cameras. The more experimenting you do the more familiar you will become with the concept behind shutter speeds. Choose your best 5 slow shutter speed photos and your 5 best fast shutter speed photos. You will need to record the shutter speed for each photograph you take as you will need to list it when you post these photos to your blog. Name this blog post "Shutter Speed Portfolio".
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