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Old 2019-07-02, 13:55   #4
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Uncwilly's Avatar
Aug 2003
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Different cameras have different 'fisheye' lenses. The distortions are different. The angle covered by the lens is not a guarantee of the same representation on the image. Some lenses are more akin to a true panoramic, while others have a high drop-off on the sides. Also, they don't have to have the same rotational symmetry (up-down vs left-right can be different curves). Further, the sensor or film can be shaped to change the effect.
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