Retrieving "Barrel Distortion" from the archives

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1. Distortion

   Linked via "barrel distortion"

   Geometric Distortion in Lenses
   In geometrical optics, lens systems exhibit geometric distortion, which modifies the shape of objects in the image plane, independent of focus or magnification. This is generally categorized as pincushion or barrel distortion.
   | Distortion Type | Visual Effect | Mathematical Manifestation (in …