About: http://webisa.webdatacommons.org/68497330

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	All these lenses, except the original f/4.5 HEKTOR, have virtually perfect optics.
http://www.w3.org/ns/prov#wasQuotedFrom	kenrockwell.com