About: http://webisa.webdatacommons.org/348813079

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	A Teleconverter is a lens accessory that mounts in between the camera and the lens to increase the effective focal length of the lens; so a 2x teleconverter would change an 80mm lens to a 160mm lens through magnification of the image.
http://www.w3.org/ns/prov#wasQuotedFrom	exposureguide.com