About: http://webisa.webdatacommons.org/196200915

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	The zoom lens is a magnification-varying optical system for varying the ?? value in which the focal length can be continuously changed within a predetermined range.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com