Assertion: film camera | /r/CapableOf | allow changing lens
Facets:
value: without fogging the film
type: MANNER
value: in mid-roll
type: LOCATION
Source sentences:
text: Film cameras, but not digital cameras, with a central shutter and interchangeable lenses often have a secondary shutter or darkslide to cover the film and allow changing lens in mid-roll without fogging the film.