About: http://webisa.webdatacommons.org/413246346

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	I???m not sure how wide open an aperture needs to be for this effect to take place, and I believe it is affected by other factors such as the size of the lens, the amount of light available, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	toomuchglass.net