About: http://webisa.webdatacommons.org/454061357

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	Angle of coverage Sufficient to illuminate the picture angle of an 18mm lens Picture edges may be slightly dark depending upon conditions, such as the lens used and the aperture setting.
http://www.w3.org/ns/prov#wasQuotedFrom	photographyblog.com