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.
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lens were originally made for manual cameras, they are currently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:
http://www.photography.com
http://www.photography.com
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