<http://webisa.webdatacommons.org/440416619>	<http://www.w3.org/ns/prov#value>	"The softness at wide apertures, especially F4, is due to aberrations other than diffraction e.g. spherical, chromatic, coma." .
<http://webisa.webdatacommons.org/440416619>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/312707344>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/440416619> .
<http://webisa.webdatacommons.org/440416619>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dpreview.com> .