Photography school lesson 3: Depth of Field
Depth of fieldDepth of field (dof) is a term used to describe how much of the image is in focus A small depth of field is when only a small part of the image is sharp, any objects that are further away, or closer to the camera than the point focused on, will be out of focus and blurry. A large depth of field is when a large amount of the image is in focus, from the objects in the foreground to the objects in the distance. DOF is controlled partly by the aperture A small aperture like f16 gives a large depth of field (lots in focus) A large aperture like f2.8 gives a small depth of field (small area of the image in focus) Depth of field is also affected by the distance from the camera to the subject. The closer the camera is to the subject the shallower the depth of field and visa versa. It is also affected by zoom, the more zoomed in you are, the shallower the depth of field and visa versa.