About: http://webisa.webdatacommons.org/87110488

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	Filter (optical)Glass or plastic item that goes in front of the camera or enlarger lens to either absorb and remove selected wavelengths of light or add special effects such as soft focus, starbursts or multiple images.
http://www.w3.org/ns/prov#wasQuotedFrom	ephotozine.com