Assertion: camera's lens | /r/CapableOf | focus 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: The lens is made of glass or plastic (or groups of glass elements) and focuses light passing through it on the film to reproduce an image.