About: http://webisa.webdatacommons.org/163790952

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	H' is a good approximation of the hyperfocal distance, as the focal length f is always much less than the f2/Nc term in the hyperfocal distance equation.
http://www.w3.org/ns/prov#wasQuotedFrom	dofmaster.com