Assertion: aperture | /r/ObjectUse | used in photography
Facets:
Source sentences:
text: Typical ranges of apertures used in photography are about f/2.8–f/22 or f/2–f/16, covering six stops, which may be divided into wide, middle, and narrow of two stops each, roughly (using round numbers) f/2–f/4, f/4–f/8, and f/8–f/16 or (for a slower lens)