Fisheye Lens

Fisheye Lens, also known as the “whole-sky lens,” is wide-angle camera lens that takes broad photographs. Generally used for astronomy or landscape shots, fisheye lens tend to distort the rendered image. Rather than reproducing an image in a rectangular form, the fisheye lens does so with a special mapping technique that includes more of the image but renders it in a convex manner.

Photographs taken with a fisheye lens make the image look “bent” or misshapen. However, they work similarly to the human eye if it were to take in abnormally large fields of view.
Fisheye Lens
Circular fisheye lens that take in 180? were the first fisheye lens developed. Currently, Nikon is credited with manufacturing the largest fisheye lens that could capture up to 220? of a field of view. Nikon is also responsible for producing the first fisheye lens that were marketed to the general public. This occurred during the 1960s. While fisheye lens were originally made for manual cameras, they are currently available for digital cameras, as well.






source:
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