Assertion: camera's lens | /r/HasProperty | illuminated by light source
Facets:
value: directly
type: MANNER
value: especially
type: OTHER
Source sentences:
text: The reflection of light at each of the many interfaces between different optical media (air, glass, plastic) seriously degraded the contrast and color saturation of early lenses, particularly zoom lenses, especially where the lens was directly illuminated by a light source.