Assertion: camera's lens | /r/CapableOf | gather light
Facets:
Source sentences:
text: Camcorders have three major components -- a lens that gathers and focuses light, an imager that converts light into an electrical signal and a recorder that converts electrical signals into digital video and encodes them for storage.
text: A larger maximum aperture means lens can gather more light, but it also produces a shallower depth of field