About: http://webisa.webdatacommons.org/7721276

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	The only thing the filter could really help with is if you slam your lens into some sort of corner which would have hit the front element, but miraculously got saved because it hit the filter and shattered that instead.
http://www.w3.org/ns/prov#wasQuotedFrom	digital-photography-school.com