About: http://webisa.webdatacommons.org/194680692

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	You need a 13mm lens to be the equivalent of 17mm with the 5D MK II. I bought a 14mm Samyang to try with the 1D MK III, but that lens was a piece of junk, and the 1D MK III did not work right with it except in full manual.
http://www.w3.org/ns/prov#wasQuotedFrom	canonrumors.com