Assertion: lens | /r/HasProperty | unique
Facets:
value: in that
type: OTHER
value: among perspective-control lenses
type: OTHER
Source sentences:
text: The lens was unique among perspective-control lenses in that, rather than offering a combination of tilt-and-shift, Minolta designed the lens with variable field curvature, which could make the field of focus either convex or concave (essentially a three-dimensional, spherical form of tilt).