Last week I talked about varying your aperture to create different effects through depth of field. In a static landscape scene where nothing is moving, you can set your aperture, then use whatever shutter speed gives you a proper exposure (assuming you are using a tripod if your shutter speed is less than around 1/125 second.) However, when part of the scene is moving, your shutter speed becomes just as important as your aperture in determining the final look of your image. Do you stop the action, or let it blur? That’s your decision to make, but in this week’s video I explain the techniques required to freeze action or blur motion as it crosses your camera’s field of view, as well as a couple of specialized techniques that I commonly use to get a unique look to my photos. I also discuss the proper use of ISO when determining what shutter speed to use.