Shutter speed, also known as “exposure time”, stands for the length of time a camera shutter is open to expose light into the camera sensor. If the shutter speed is fast, it can help to freeze action completely,If the shutter speed is slow, it can create an effect where moving objects appear blurred along the direction of the motion. The longer the shutter speed, the more light gets into the camera.A short shutter speed will freeze things without much motion, so you can photograph fast moving things like cars or animals. A long shutter speed would capture movement, and the image would look blurred. This is useful to show movement or speed. A faster shutter speed like 1/1000 second, will make the camera shutter stay open for 1000th of a second. This is useful for a picture where you want to just show a fast moving subject without any motion blur, but beware, when using a slower shutter speed, the camera shutter opens and closes so fast meaning a darker image.
Short shutter speed- f2.8 Fast shutter speed- f/16