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2. Perspective distortion - Wikipedia

   en.wikipedia.org/wiki/Perspective_distortion

   Compression, long-lens, or telephoto distortion can be seen in images shot from a distance using a long focus lens or the more common telephoto sub-type (with an angle of view narrower than a normal lens). Distant objects look approximately the same size – closer objects are abnormally small, and more distant objects are abnormally large, and ...

3. File:500mm telephoto lens 01.jpg - Wikipedia

   en.wikipedia.org/wiki/File:500mm_telephoto_lens...

   Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

4. Distortion (optics) - Wikipedia

   en.wikipedia.org/wiki/Distortion_(optics)

   In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image.It is a form of optical aberration that may be distinguished from other aberrations such as spherical aberration, coma, chromatic aberration, field curvature, and astigmatism in a sense that these impact the image sharpness without changing an ...

5. Telephoto lens - Wikipedia

   en.wikipedia.org/wiki/Telephoto_lens

   A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length of the lens is shorter than the focal length. [ 1 ] : 93 This is achieved by incorporating a special lens group known as a telephoto group that extends the light path to create a long-focus lens ...

6. Photographic lens design - Wikipedia

   en.wikipedia.org/wiki/Photographic_lens_design

   The design of telephoto lenses reduces some of the problems encountered by designers of long-focus lenses. In particular, telephoto lenses are typically much shorter and may be lighter for equivalent focal length and aperture. However telephoto designs increase the number of lens elements and can introduce flare and exacerbate some optical ...

7. The best Canon telephoto lenses in 2022: for your DSLR or EOS ...

   www.aol.com/news/best-canon-telephoto-lenses...

   Image quality is excellent, on a par with Canon’s much pricier and heavier 100-400mm lens. Best Canon telephoto: Canon EF 100-400mm f/4.5-5.6 L IS II USM (Image credit: Canon)