Assertion: barrel distortion | /r/AtLocation | zoom lens
Facets:
value: typically
type: DEGREE
value: with relatively short focal lengths
type: OTHER
Source sentences:
text: In a zoom lens, barrel distortion appears in the middle of the lens's focal length range and is worst at the wide-angle end of the range.
text: Barrel distortion is typically present on most wide angle prime lenses and many zoom lenses with relatively short focal lengths.