Assertion: lens | /r/AtLocation | lenses with ranges of 2:1
Facets:
value: with ranges of 2:1
type: OTHER
value: for 35 mm cameras
type: OTHER
Source sentences:
text: For 35 mm cameras, lenses producing rectilinear images can be found at focal lengths as short as 8 mm, including zoom lenses with ranges of 2:1 that begin at 12 mm.