About: http://webisa.webdatacommons.org/14723342

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	Exclusively for the new product line, Sigma has developed software (SIGMA Optimization Pro), with which you can update the lens firmware yourself and adjust parameters such as back focus or front focus.
http://www.w3.org/ns/prov#wasQuotedFrom	camerastuffreview.com