About: http://webisa.webdatacommons.org/100764226

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	Photozone finds the same in their test charts.I am pretty sure that 2.5-4.5 stops of IBIS makes up that differenceIn this particular example, you would be wrong unless the target was an object.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com