About: http://webisa.webdatacommons.org/156008342

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	It is difficult to know if changing lenses, keeping lens caps clean, the subject being set up including changing lights and background or the photographer moving is part of the problem.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com