Plane of Focus
The Plane of Focus (PoF) is an imaginary two dimensional plane in front of the camera at the point of focus. The PoF represents the theoretical plane of sharpest focus and lies in the depth of field. The PoF lies parallel to the sensor (and perpendicular to the optical axis). Except in some special cases (tilt & shift lenses and bellows cameras), the PoF remains in the same position relative to the sensor plane when the camera tilts or changes its position/angle.
The plane of focus should not be confused with the focal plane. The latter is inside the camera and the plane of focus is outside the camera.
Comments, additions, amendments or ideas on this article? Contact Us