camera settings

Photo of a Guitar shows depth of field

Depth of field is an old term. It can be described as being the range of distances in an image where the image comes into focus to the distance where the image goes out of focus. There are three criteria for depth of field: Lens focal length, Aperture / Lens Opening, and the distance between the camera and subject. We will examine them individually, but keep in mind that their effects are cumulative.