Assertion: aperture | /r/HasProperty | stated as a number of f/values
Facets:
value: as in f2.8
type: OTHER
Source sentences:
text: But if the aperture is stated as a number of f/values as in F2.8, F4.5, then it means the lens has only two apertures; a lot of cheap point-and-shoot cameras has only one aperture (in this case F2.8) and a Neutral Density (ND) filter is used to simulate the other aperture (F4.5).