Assertion: camera's aperture | /r/HasProperty | open
Facets:
value: in the camera
type: LOCATION
value: twice as long
type: TEMPORAL
value: in optics
type: OTHER
Source sentences:
text: The wider the aperture of the lens is open, the faster the shutter speed needs to be to get a good exposure.
text: The aperture, sometimes called the diaphragm or iris, is the opening through which light enters the camera.
text: In optics, an aperture is a hole or an opening through which light travels.
text: Because the aperture is open twice as long, it lets in twice as much light.
text: The aperture is the opening in the camera which allows light in and it’s measured in what’s called f-stops and the numbers are displayed in a series like 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22.