Slit-scan

The slit-scan photography technique is a photographic and cinematographic process where a moveable slide, into which a slit has been cut, is inserted between the camera and the subject to be photographed.

• http://www.flong.com/texts/lists/slit_scan/
• http://en.wikipedia.org/wiki/Slit-scan_photography
• http://people.rit.edu/andpph/text-slit-scan.html