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  2. 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 ...

  3. Samyang 8mm f3.5 fisheye - Wikipedia

    en.wikipedia.org/wiki/Samyang_8mm_f3.5_fisheye

    The Samyang 8mm f/3.5 fisheye is a fisheye photographic lens using the stereographic projection and is designed for crop factor APS-C DSLRs. [1] It is made in South Korea by Samyang Optics and marketed under several brand names, including Rokinon. The lens uses manual focus only. For most versions of the lens, the aperture must be set manually.

  4. Hemispherical photography - Wikipedia

    en.wikipedia.org/wiki/Hemispherical_photography

    Hemispherical photograph used to study microclimate of winter roosting habitat at the Monarch Butterfly Biosphere Reserve, Mexico.. Hemispherical photography, also known as canopy photography, is a technique to estimate solar radiation and characterize plant canopy geometry using photographs taken looking upward through an extreme wide-angle lens or a fisheye lens (Rich 1990).

  5. 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.

  6. Category:Fisheye lenses - Wikipedia

    en.wikipedia.org/wiki/Category:Fisheye_lenses

    Samyang 7.5mm F3.5 UMC Fisheye MFT; Samyang 8mm f/3.5 Fisheye CS II; Samyang 8mm F2.8 UMC Fisheye; Samyang 8mm f3.5 fisheye; Samyang 12mm F2.8 ED AS NCS Fish-eye; Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens; Sigma 8mm f/3.5 EX DG lens; Sigma 8mm f/4 EX DG lens; Sigma 10mm f/2.8 EX DC Fisheye HSM lens; Skate video; Sony α Fish-Eye 16mm f/2.8

  7. Peleng lens - Wikipedia

    en.wikipedia.org/wiki/Peleng_lens

    Peleng 3.5/8A is an 8 mm super-wideangle circular fisheye photographic lens, and is designed as an interchangeable lens for Canon, Nikon, Pentax, Olympus digital or film cameras which have or do not have the instant-return diaphragm automatic control device [clarification needed]. The lens has a variable diaphragm from f/3.5 to f/16.

  8. Canon EF 8-15mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_8-15mm_lens

    The EF8–15mm f / 4L FISHEYE USM is a fisheye zoom lens for Canon digital single-lens reflex cameras (DSLRs) with an EF lens mount. It delivers 180° diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C, and provides 180° circular fisheye images for full-frame EOS models. Announced by ...

  9. Pentax DA 10-17mm lens - Wikipedia

    en.wikipedia.org/wiki/Pentax_DA_10-17mm_lens

    The smc Pentax-DA 10-17mm f/3.5-4.5 ED (IF) Fish-Eye lens is a fisheye zoom lens for the Pentax K-mount.It offers an up to 180 degree view, and allows quick shift focus (Pentax's term for giving the photographer the ability to manually focus the lens even when the camera is in autofocus mode without damaging the lens or camera).