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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. 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 ...

4. History of photographic lens design - Wikipedia

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

   The first widely-available fisheye lens for 35mm cameras was the Fisheye-Nikkor 8 mm f /8 from Nikon, released in 1962, which produced circular images similar to those popularized by the LIFE photographers; [71] that lens served as the "eye" of the HAL 9000 computer from the film 2001: A Space Odyssey, [72] although scenes depicting HAL's point ...

5. 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.

6. 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.

7. Angle of view (photography) - Wikipedia

   en.wikipedia.org/wiki/Angle_of_view_(photography)

   A circular fisheye lens (as opposed to a full-frame fisheye) is an example of a lens where the angle of coverage is less than the angle of view. The image projected onto the film is circular because the diameter of the image projected is narrower than that needed to cover the widest portion of the film.