When done well, a photograph that has good control over the depth of field can add dramatically to the impact of the picture. When we are talking about depth of field, what we are referring to is a shot were the main subject of the picture is in sharp focus but other elements in the picture are blurred or out of focus. Two key terms to learn here are focal plane which is the area of the image that we want to have in sharp focus and bokeh which is the out of focus sections.

Adam Mason asked us how aperture can affect your shot. To answer the question Kerry explains what aperture is and then demonstrates how it can be used to alter the look of the image you are trying to create. By learning how to use your aperture to control light and depth of field you can dramatically change the look of your photographs.