About: http://webisa.webdatacommons.org/30488619

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	For correcting field dependent image errors such as field curvature, the manipulator should be arranged in or close to a field plane, for example the object or image plane of the projection objective.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com