Composed frame by frame in the camera, Parcelle (fragment, particle or bit) rests upon the alternate appearance and variable duration of tiny coloured squares or circles placed on black backgrounds and inserted in series between plain white or coloured images. Although the film, filmed frame by frame, may appear conventional on a technical level, this is not the case conceptually as it has been conceived to pin point situations requiring the sense of perception to process images in various time lengths according to the characteristics viewed, a procedure which provokes the experience of optical superimpositions on the screen.