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2. Nikon AF DX Fisheye-Nikkor 10.5mm f/2.8G ED - Wikipedia

   en.wikipedia.org/wiki/Nikon_AF_DX_Fisheye-Nikkor...

   Nikon announced the lens on 22 July 2003. [2] It was the first prime lens released by Nikon specifically designed for Nikon DX format DSLR cameras. The lens produces a distinctive rectangular fisheye image, which fills the DX format frame (as opposed to a circular fisheye lens which produces a circular image).

3. Sigma 8mm f/3.5 EX DG lens - Wikipedia

   en.wikipedia.org/wiki/Sigma_8mm_f/3.5_EX_DG_lens

   The Sigma 8mm f/3.5 EX DG is a photographic lens introduced on 9 August 2006. It is a circular fisheye lens, designed to project a 180-degree field of view in all directions onto a circular image when used on a full-frame camera. The lens is available in Canon, Nikon, and Sigma mounts.

4. Sigma 10mm f/2.8 EX DC Fisheye HSM lens - Wikipedia

   en.wikipedia.org/.../2.8_EX_DC_Fisheye_HSM_lens

   Unlike most fisheye lenses, this lens is designed for digital SLR cameras that do not have a full 36x24mm sensor. [1] This results in a much greater fisheye effect than is possible when a full-frame fisheye lens is used with a smaller sensor. The projection type of this lens is equidistant [2] This lens is available in Canon, Nikon, and Sigma ...

5. List of Nikon F-mount lenses with integrated autofocus motor

   en.wikipedia.org/wiki/List_of_Nikon_F-mount...

   Use of this lens on a full-frame (FX) sensor will likely cause vignetting. All full-frame Nikon DSLRs are able to detect DX lenses and crop the image accordingly by default. However, the viewfinder view is likely to be constricted. Sigma DG/Tamron Di/Tokina FX: A lens for fullframe DSLRs (FX) or analog film. No special designation for Nikon NIKKOR.

6. Lenses for SLR and DSLR cameras - Wikipedia

   en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

   All Nikon full-frame "FX" DSLRs have a DX-compatible mode that, by default when a DX-format lens is attached, crops the captured frames to the DX format and adjusts the viewfinder to reflect the smaller capture area. This can be overridden by the user if desired. There are basically three types of F mount Nikon lens: MF = Manual focus lenses

7. Fisheye lens - Wikipedia

   en.wikipedia.org/wiki/Fisheye_lens

   In a circular fisheye lens, the image circle is inscribed in the film or sensor area; in a diagonal ("full-frame") fisheye lens, the image circle is circumscribed around the film or sensor area. This implies that using a fisheye lens for a different format than it was intended for is easy (as opposed to a rectilinear lens), and may change its ...