<http://webisa.webdatacommons.org/prov/168585443>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/390614508> .
<http://webisa.webdatacommons.org/390614508>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/390614508>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<divebuddy.com> .
<http://webisa.webdatacommons.org/390614508>	<http://www.w3.org/ns/prov#value>	"Several options are available for the attachment of external wide angle and macro lenses: Attach 46mm threaded #6420.46 Ikelite W-20 and other lenses directly to the front of the housing port (recommended)." .