Assertion: lens | /r/HasProperty | referred
Facets:
value: as being "faster
type: OTHER
Source sentences:
text: In the rest of this tutorial, when a lens is referred to as having lower optical quality than another lens, this is manifested as some combination of the above artifacts.
text: Lenses may also be referred to as being "faster" or "slower" than one another; so an f/3.5 lens can be described as faster than an f/5.6.