Depth of field is a commonly used term in photography that refers to the zone of acceptable sharpness in a photo. There are several other synonymous terms that can be used to describe this concept. One of these is "focal plane." This refers to the plane in the image where the lens is focused and where the image is sharpest. Another synonymous term is "depth of focus," which describes the amount of the image that is in focus in front of and behind the focal plane. "Aperture range" is another term that can be used to describe the depth of field, as it refers to the range of aperture settings that affect the depth of field in a photograph.