Understanding Aperture

                IOS: 800

             Aperture: 4.5

       Shutter Speed: 1/200

                IOS: 800

           Aperture: 11.0

       Shutter Speed: 1/60

1. Aperture is the size of the opening in the lens when the picture is taken.
2. When the aperture is lower the picture is brighter, and vice versa.
3. The higher the aperture the higher the shutter speed and vice versa.