About: http://webisa.webdatacommons.org/437939977

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	do not rule out the Sigma 70 - 200mm f/2.8 OS. it is a good lens, not as good as the Canon 2.8, but the difference is mainly at the borders & corners, on FF which you are not using.
http://www.w3.org/ns/prov#wasQuotedFrom	canonrumors.com