About: http://webisa.webdatacommons.org/322547707

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	Therefore, off-axis aberration such as astigmatism can be efficiently corrected.The sixth lens unit includes a positive meniscus lens which is convex to the reducing conjugate side.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com