About: http://webisa.webdatacommons.org/189558161

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	With a telephoto design, the front element size is the focal length / f-number, but with other lens designs, he is not the case, particularly with wide angle lenses (35mm f/2.8 with 77/82 mm filter sizes).
http://www.w3.org/ns/prov#wasQuotedFrom	canonrumors.com