About: http://webisa.webdatacommons.org/73179629

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	I would say that the 100-400 L IS lens is an option if you do not want to spend thousands of dollars.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com