Understand Pincushion Distortion In Digital Photography
Pincushion distortion is most often associated with telephoto lenses, and in particular, zoom telephotos. The distortion will usually occur at the telephoto end of the lens. The pincushion distortion effect increases with the distance the object is from the optical axis of the lens. Fixing Pincushion Distortion Pincushion distortion can be corrected easily in modern image-editing programs such as Adobe Photoshop, which contains a lens-distortion correction filter. Free photo-editing programs also offer slightly less sophisticated corrections....