6A65.30 - Distortion - Barrel and Pincushion
Astigmatism and Distortion - Place the desired Moiré' Array design in the object lamp. Place the lamp on the optics rail at the end opposite the camera. Place the large Bell & Howell lens between the camera and the lamp. By moving the lens closer and farther away from the camera the 'pin cushion' and other effects can be demonstrated.
- O-370: "Stops - Apertures & Obstacles", DICK and RAE Physics Demo Notebook.
- O-375: "Thick Lens & Stop", DICK and RAE Physics Demo Notebook.
- John H. Moore, Christopher C. Davis, Michael A. Coplan, "Distortion", Building Scientific Apparatus 2nd Edition, p. 147-148.
- C. Harvey Palmer, "Experiment A13: The Off-Axis Aberrations of Lenses", Optics - Experiments and Demonstrations, John Hopkins Press, 1962.
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