Assertion: camera lens's length | /r/HasProperty | lens
Facets:
Source sentences:
text: A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed focal length (FFL) lens (see prime lens).
text: The Kino Precision Kiron 28-210mm f/4-5.6 (Japan) of 1985 was the first very large ratio focal length zoom lens for still cameras (most 35mm SLRs).