Shutter spead is one tool that is really helpful. It makes your picturse come out more clear. This tool helps you to focus on the main object and pause it in time. It also affects the amount for light that comes into the picture. When you are in the dark, and you want to take a picture you program the picture on manual and it could last up to 12 seconds to take in all the light, and to make the picture really bright. In the first picture I Courtney kept moving his upper body so i focused the lower half that wasn't moving which made the picture look kind of neat.