About: http://webisa.webdatacommons.org/437374790

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	I think whether the push pull design is a plus or a minus is a matter of personal preference, but I am not aware of any zoom lens which features a single zoom/focus control since autofocus cameras became the norm.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net