The amount of light or exposure captured by your camera is determined by two things, namely the variable aperture-hole in front of the lens is preferred, or reduce the shutter speed of light-and-cover over the sensor that controls the duration of light reaching it, and both can be used as good to be created possible by the photographer.
Shutter speed on a camera, handy when you want to see more detail of an object. Shutter speed has a very long exposure interval, 1/30 sec to 1/8000 sec. With a fast shutter speed, you can freeze the object; while a slow shutter speed, you can create objects blur an object. In addition to using a shutter speed two-way, you can also combine the use of slow shutter speed with flash to be able to shoot an object and obscure others. Read more