Assertion: shutter's speed | /r/UsedFor | refer to the amount of time
Facets:
value: simply
type: MANNER
Source sentences:
text: Anyway, I finally realized that shutter speed refers to the amount of time the shutter remains open…and not how fast it mechanically opens or shuts.
text: Shutter speed simply refers to the amount of time that the camera's shutter is open.