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A photographic lens is used to focus the light onto film or a digital sensor. Many cameras have interchangeable lens systems, allowing the photographer to choose the type of lens to use.

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It seems that the fisheye effect can look different with the same lens. So I want to understand how it works. For example, I use a Dji Phantom vision 2 drone to take pictures, all of my pictures … have been made with the same camera (same lens) and all present a fisheye effect. But it seems that the fisheye effect is different for each picture, does it depend of the distance to the subject (in the case of a drone the subject would be the ground) ? …
asked Feb 12 '15 by PEC