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2. Fisheye lens - Wikipedia

   en.wikipedia.org/wiki/Fisheye_lens

   A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. [4][5]: 145 Fisheye lenses achieve extremely wide angles of view, well beyond any rectilinear lens. Instead of producing images with straight lines of perspective (rectilinear images), fisheye lenses use ...

3. Nikon AF DX Fisheye-Nikkor 10.5mm f/2.8G ED - Wikipedia

   en.wikipedia.org/wiki/Nikon_AF_DX_Fisheye-Nikkor...

   Angle of view. Diagonal. 180° (with DX format) History. Introduction. 2003. The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED is a fisheye lens manufactured by Nikon for use on Nikon DX format digital SLR cameras. It provides a full 180-degree angle of view on a DX format camera.

4. Luneburg lens - Wikipedia

   en.wikipedia.org/wiki/Luneburg_lens

   A Luneburg lens (original German Lüneburg lens) is a spherically symmetric gradient-index lens. A typical Luneburg lens's refractive index n decreases radially from the center to the outer surface. They can be made for use with electromagnetic radiation from visible light to radio waves. For certain index profiles, the lens will form perfect ...

5. Minolta AF Fish-Eye 16mm f/2.8 - Wikipedia

   en.wikipedia.org/wiki/Minolta_AF_Fish-Eye_16mm_f/2.8

   Retail info. MSRP. 1000 USD (as of 2006) Originally produced by Minolta, and currently produced by Sony, the AF Fish-Eye 16mm, is a prime Fisheye lens compatible with cameras using the Minolta A-mount and Sony A-mount lens mounts. It is a full-frame fisheye lens with a 180° viewing angle.

6. Canon EF 15mm lens - Wikipedia

   en.wikipedia.org/wiki/Canon_EF_15mm_lens

   Retail info. MSRP. $719.99 USD. The Canon EF 15mm f/2.8 was a fisheye lens produced by Canon from 1987 to 2011. The lens was compatible with all EF camera bodies but only intended for full-frame configurations, as the fisheye effect is much less pronounced with a cropped sensor ( APS-C ). In 2010 Canon announced the EF 8–15mm f/ 4L Fisheye ...

7. History of photographic lens design - Wikipedia

   en.wikipedia.org/wiki/History_of_photographic...

   A fisheye lens is a special type of ultra-wide angle retrofocus lens with little or no attempt to correct for rectilinear distortion. Most fisheyes produce a circular image with a 180° field of view. The term fisheye comes from the supposition that a fish looking up at the sky would see in the same way. [1]: 145