Assertion: camera's lense | /r/CapableOf | focus light
Facets:
Source sentences:
text: Well, there are many types of cameras around that do not rely on lenses to focus light.
text: Lenses focus the light entering the camera, the size of the aperture can be widened or narrowed to let more or less light into the camera, and a shutter mechanism determines the amount of time the photo-sensitive surface is exposed to the light.