About: http://webisa.webdatacommons.org/14490058

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 clip on idea looks good, the wide angle and the Polariser would be great but as you say Guy, The 3 image ???mirage??? lens is a gimmick.
http://www.w3.org/ns/prov#wasQuotedFrom	thebeginnerslens.com