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The AF-S Fisheye NIKKOR 8-15mm f/3.5-4.5E ED from Nikon is a fisheye zoom designed for FX-format F-mount DSLRs. At the wide end of the zoom range, the lens produces a circular field of view, which gradually covers the entire full frame by the long end of the focal length range. Also, Nano Crystal and Super Integrated Coatings have been applied to suppress flare and ghosting for improved contrast in strong lighting conditions.An electromagnetic diaphragm is also featured for greater exposure control stability when working with faster continuous shooting rates.Unique fisheye zoom is designed for FX-format Nikon F-mount DSLRs, and can also be used on DX models where it provides a 12-22.5mm equivalent focal length range.Three extra-low dispersion glass elements are used in the optical construction to reduce a variety of chromatic aberrations and color fringing for a high degree of clarity and color neutrality.Nano Crystal and Super Integrated Coatings have been applied to lens elements to minimize surface and internal reflections for a marked reduction in lens flare and ghosting.An internal focusing design is also used, where only the internal lens groups are moved during focusing, to maintain the overall length of the lens during use and to promote faster focusing speeds.
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