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.
• Plane of Focus •
Click image to view large
The Plane of Focus will remain in the same position relative to the camera all the time although the distance from the camera will vary as the focus distance changes.
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.
Photographic Glossary – Definitions, articles and resources…
Definition: Focal plane; Image plane; film plane; sensor plane;
Definition: Depth of Field
Definition: Optical axis
Large view of the Plane of Focus diagram.
Facts about focus… how much do you know?
Comments, additions, amendments or ideas on this article? Contact Us
One response to “Definition: Plane of Focus”