English: Computer animation showing the effect of changing a camera's aperture over time. The distance of the camera from the focal point (i.e. the center of the scene) is 16 units; each gray tile is 1/4 by 1/4 units. The text shows the f-stops and aperture values. This animation increments in aperture values (AV). Ed: I don't recall what AVs are anymore. One of the articles on WP described them but that content was deleted IIRC.
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