About: http://webisa.webdatacommons.org/6542403

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	Unlike eyepiece projection systems, the BPFFC is free of the common defects such as chromatic aberration, pincushion/barrel distortion, astigmatism, coma, and vignetting of the light cone.
http://www.w3.org/ns/prov#wasQuotedFrom	astro-physics.com