|
by Dominik LANGE
2020 / Super 8 / b&w / silent / 1 screen / 3' 22
|
The thaumatrope (from the Greek thauma, prodigy and tropion, turn) is an optical toy that exploits the phenomenon of retinal persistence. When light reaches the retina, photosensitive cells (cones and rods) trigger a chemical reaction. The persistence of a duration of about 50 ms[1] leaves a "trace" at the back of the retina. If another image is perceived by the eye in this time, our brain will have the illusion of seeing both images at the same time.
The phi effect applies to the illusion of a movement.
Other optical toys that use retinal persistence were invented in the 19th century: the phenakistiscope, the zoetrope, the praxinoscope... or even the leafoscope, where a drawing is made on each page of a booklet that is stripped reproducing a continuous movement.
The Thaumatrope is actually an optical illusion.
1 PRINT IN DISTRIBUTION
|
distribution format |
Digital file on server (FHD) |
|
screen |
1,37 (single screen) |
|
speed |
25 fps |
|
sound |
silent |
|
rental fee |
27,00 € |
