About: http://webisa.webdatacommons.org/281611996

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	When using a physical camera, this plane is perpendicular to the optical axis of the camera lens, unless the camera is a view camera.
http://www.w3.org/ns/prov#wasQuotedFrom	berkeley.edu