About: http://webisa.webdatacommons.org/309318976

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	Those old lenses were made when more effort and care was spent on materials and manufacture, if anything they may be better material wise i.e. glass, which is what counts, along with manufacturing tolerances.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com