About: http://webisa.webdatacommons.org/68573266

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	IIRC they said the Sigma was a slightly sharper.. and the tamron was soft at 270.. but that is me going by foggy memory.
http://www.w3.org/ns/prov#wasQuotedFrom	slickdeals.net