About: http://webisa.webdatacommons.org/85351093

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	When I compared the Sigma 50 1.4 to the Canon, one of the things I saw was the Canon started to really over-take the Sigma as you stopped down.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com