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  2. Sigma 12-24mm f/4.5-5.6 lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_12-24mm_f/4.5-5.6_lens

    Retail info. MSRP. 1050 USD. The Sigma 12-24mm f/4.5-5.6 EX DG HSM is a professional-level wide-angle zoom lens made by Sigma Corporation. [1] At launch it was the widest rectilinear lens available for full-frame 35mm SLR cameras, providing a field of view of 122 degrees. It has since been surpassed by the Canon EF 11-24mm f/4L zoom lens and ...

  3. Sigma 8-16mm f/4.5-5.6 DC HSM lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_8-16mm_f/4.5-5.6_DC...

    The Sigma 8–16mm lens is an enthusiast-level, ultra wide-angle rectilinear zoom lens made by Sigma Corporation specifically for use with APS-C small format digital SLRs.It is the first ultrawide rectilinear (non-fisheye lens) zoom lens with a minimum focal length of 8 mm, designed specifically for APS-C size image sensors. [1]

  4. Sigma 35 mm f/1.4 DG HSM lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_35_mm_f/1.4_DG_HSM_lens

    The Sigma 35 mm f / 1.4 DG HSM Art is a wide-angle prime lens made by the Sigma Corporation. [1] The lens was announced at the 2012 photokina trade fair. [2]The lens is produced in Canon EF mount, Nikon F-mount, Pentax K mount, Sigma's own SA mount, and the Sony/Minolta AF Mount varieties, all have the same optical formula.

  5. History of photographic lens design - Wikipedia

    en.wikipedia.org/wiki/History_of_photographic...

    It was the first super-wide angle zoom lens for still cameras (most 35mm SLRs). Previously, combining the complexities of rectilinear super-wide angle lenses, retrofocus lenses and zoom lenses seemed impossible. The Sigma's all-moving eleven element/seven group/three cell formula was a triumph of computer-aided design and multicoating. [114]

  6. Wide-angle lens - Wikipedia

    en.wikipedia.org/wiki/Wide-angle_lens

    A wide-angle lens is also one that projects a substantially larger image circle than would be typical for a standard design lens of the same focal length. This large image circle enables either large tilt & shift movements with a view camera. By convention, in still photography, the normal lens for a particular format has a focal length ...

  7. Sigma 24mm F1.4 DG HSM Art - Wikipedia

    en.wikipedia.org/wiki/Sigma_24mm_F1.4_DG_HSM_Art

    The Sigma 24mm F1.4 DG HSM Art is an interchangeable wide angle lens for full frame cameras. It was announced by Sigma Corporation on February 10, 2015. A full two stops faster than most 24mm primes, it is designed to capture wide angle imagery with shallow depth of field, as one might with a medium or large format camera.

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