Assertion: lens's aberration | /r/HasProperty | green-magenta color fringes
Facets:
Source sentences:
text: ED glass helps eliminate secondary chromatic aberration (green-magenta color fringes) which is what previously prevented the design of practical super speed, super sharp super teles.
text: Short and normal lenses have no need of this glass; it's benefit is reducing secondary chromatic aberration, which is green/magenta color fringes that used to plague lenses of 300mm and up.