About: http://webisa.webdatacommons.org/329662845

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	If it ever begins to disappoint me, I might try a second 50L to see if the focusing issue was a fluke, but I honestly do not think I need to try another.Here are two shots of each lens, both taken with the other lens at f/1.4.
http://www.w3.org/ns/prov#wasQuotedFrom	photography-on-the.net