PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This step is a little tricky as there are others who suggest going for 15x - 20x the focus length.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cameralabs.com