About: http://webisa.webdatacommons.org/10988781

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	Again, this is because there is a difference between the physical measure of focal length, and the perceptual measure of field of view.
http://www.w3.org/ns/prov#wasQuotedFrom	back2basicsphoto.com