Assertion: photochromic lens | /r/ObjectUse | used in portrait
Facets:
value: less commonly
type: DEGREE
value: because of the potential for distortion
type: CAUSE
value: because of the loss of background
type: CAUSE
Source sentences:
text: They are less commonly used in portrait, street, and landscape photography because of the potential for distortion and the loss of background when zooming in close to a subject.