True 180degree fisheye lens,best service and fast delivery.

Fisheye Conversion Lens 37mm 0.25x
Specifications
Magnification 0 .25x
Rear Mount Diameter 37mm
Front  Diameter:NO
Construction, Elements/Groups 3E/3G Lens

Diameter 55mm
Length 30mm
Item  includes
Lens Pouch
Front and Rear Lens Cover
Cleaning piece
In photography, a fisheye conversion lens is a wide-angle lens that takes in an extremely wide, hemispherical image. Originally developed for use in meteorology to study cloud formation and called "whole-sky lenses", fisheye conversion lens quickly became popular in general photography for their unique, distorted appearance. fisheye conversion lens are often used by photographers shooting broad landscapes to suggest the curve of the Earth. Hemispherical photography is used for various scientific purposes to study plant canopy geometry and to calculate near-ground solar radiation.