This is a theory where an afterimage is believed to last for approximately about a twenty fifth of a second in your retina. This helps with creating stop motion movies, especially whilst using devices such as the thaumatrope because your persistence of vision will create the moving effect of the pictures being used.
When stop motion is used with devices such as the thaumatrope, persistence of vision is used. This is when the two pictures on each side of a piece of card or paper are being spun at a rate faster than one twenty fifth of a second and so the picture of one side of the thaumatrope and the picture of the other side will almost be fitted together in your mind to create one image. This is one of the main devices which rely on persistence of vision to work.
Here is an example of a thaumatrope working:
Frame Rates:
This is how many frames per second which are used in a film/video. An example of this would be, if you had a frame rate of 25 fps (frames per second) this would mean within every single second of the film there would be 25 frames used.
Stop Frame:
A stop frame is each frame which is used during stop animation. This is each of the pictures used while creating a stop motion film/video.
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