About: http://webisa.webdatacommons.org/116841635

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	What you actually want is lens with built in sensor, which communicates wirelessly to the smartphone, and some sort of holder to attach the two.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com