Whether or not you are taking photographs or video, there are are many tools that can help you create quality-looking results. Two of these twos are the shutter speed and ISO. By understanding these features, you can have a better idea of how your camera works, and what it can produce.
The shutter speed of the camera is a measurement-typically in fractions of a second-of the speed that the shutter opens and closes on a camera. When you hear the click of the camera, that is the shutter opening and closing, etching what it sees through the lens and imprinting it on film or in digital memory.