Editing Scheimpflug principle (section)

==Camera movements==
Tilt and swing are movements available on most [[view camera]]s, often on both the front and rear standards, and on some small- and [[Medium format (film)|medium format]] cameras using special lenses that partially emulate view-camera movements. Such lenses are often called [[Tilt-shift lens|tilt-shift]] or "[[Perspective control lens|perspective control]]" lenses.{{Efn|The earliest Nikon perspective-control lenses included only shift, hence the designation "PC"; Nikon PC lenses introduced since 1999 also include tilt but retain the earlier designation.}} For some camera models there are adapters that enable movements with some of the manufacturer's regular lenses, and a crude approximation may be achieved with such attachments as the '[[Lensbaby]]' or by '[[freelensing]]'.