About: http://webisa.webdatacommons.org/22526106

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	That measurement is performed at image center, what happens in the field is a different measurement, available on www.dxomark.com as ???vignetting???.Mark Dubovoy
http://www.w3.org/ns/prov#wasQuotedFrom	luminous-landscape.com