10 Facts About Fisheye lens

Fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image.

The angle of view of a fisheye lens is usually between 100 and 180 degrees, although lenses covering up to 280 degrees exist .

Wood subsequently built an improved "horizontal" version of the camera omitting the Fisheye lens, instead using a pinhole pierced in the side of a tank, which was filled with water and a photographic plate.

Bond noted the new Fisheye lens could be used to record cloud cover or lightning strikes at a given location.

Bond's hemispheric Fisheye lens reduced the need for a pinhole aperture to ensure sharp focus, so exposure times were reduced.

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Distortion is unavoidable in a Fisheye lens that encompasses an angle of view exceeding 125°, but Hill and Beck claimed in the patent that stereographic or equidistant projection were the preferred mapping functions.

Only 30 examples of the Nikon Fisheye lens Camera were manufactured, and of those, 18 were sold to customers, mainly in the United States; Nikon likely destroyed the remaining stock to avoid tax penalties.

Also in 1938, Robert Richter of Carl Zeiss AG patented the 6-element, 5-group Pleon Fisheye lens, which was used for aerial surveillance during World War II.

Today however, a portrait fisheye effect is easily achieved by using a fisheye lens intended for full coverage of a smaller sensor format, like an APS diagonal fisheye on a 35 mm full frame camera, or an m43 diagonal fisheye on APS.

Fisheye lens used to capture entire Wells Cathedral Chapter House room.