About: http://webisa.webdatacommons.org/183538759

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	More on this below.7) Calibration ToolsThere are a number of free and commercial tools for calibrating / fine tuning lenses.
http://www.w3.org/ns/prov#wasQuotedFrom	photographylife.com