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2. Fisheye lens - Wikipedia

   en.wikipedia.org/wiki/Fisheye_lens

   A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. [4][5]: 145 Fisheye lenses achieve extremely wide angles of view, well beyond any rectilinear lens. Instead of producing images with straight lines of perspective (rectilinear images), fisheye lenses use ...

3. Canon EF 8-15mm lens - Wikipedia

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

   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.

4. Canon EF 15mm lens - Wikipedia

   en.wikipedia.org/wiki/Canon_EF_15mm_lens

   Retail info. MSRP. $719.99 USD. The Canon EF 15mm f/2.8 was a fisheye lens produced by Canon from 1987 to 2011. The lens was compatible with all EF camera bodies but only intended for full-frame configurations, as the fisheye effect is much less pronounced with a cropped sensor (APS-C). In 2010 Canon announced the EF 8–15mm f/ 4L Fisheye USM ...

5. 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).

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

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

   Retail info. MSRP. $1000 USD. The Sigma 10mm f/2.8 EX DC fisheye is a photographic lens manufactured by Sigma Corporation. It is a diagonal fisheye 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 ...

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

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

   180. Retail info. MSRP. $1230 USD. 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.

8. 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.

9. Minolta AF Fish-Eye 16mm f/2.8 - Wikipedia

   en.wikipedia.org/wiki/Minolta_AF_Fish-Eye_16mm_f/2.8

   Retail info. MSRP. 1000 USD (as of 2006) Originally produced by Minolta, and currently produced by Sony, the AF Fish-Eye 16mm, is a prime Fisheye lens compatible with cameras using the Minolta A-mount and Sony A-mount lens mounts. It is a full-frame fisheye lens with a 180° viewing angle.