Assertion: orthoscopic eyepiece | /r/HasProperty | renowned
Facets:
value: for their excellent distortion
type: CAUSE
value: for aberration-free views
type: CAUSE
Source sentences:
text: Orthoscopic eyepieces are renowned for their excellent distortion and aberration-free views, although they typically have a narrower AFOV of between 40˚ and 45˚.