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  2. Angle of view (photography) - Wikipedia

    en.wikipedia.org/wiki/Angle_of_view_(photography)

    So a standard 50 mm lens for 35 mm photography acts like a 50 mm standard "film" lens even on a professional digital SLR, but would act closer to a 75 mm (1.5×50 mm Nikon) or 80 mm lens (1.6×50mm Canon) on many mid-market DSLRs, and the 40-degree angle of view of a standard 50 mm lens on a film camera is equivalent to a 28–35 mm lens on ...

  3. Fisheye lens - Wikipedia

    en.wikipedia.org/wiki/Fisheye_lens

    Wood (1905), [1] Bond (1922), [2] and Hill (1924) [3] Construction. Var. elements in Var. groups. 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.

  4. Telephoto lens - Wikipedia

    en.wikipedia.org/wiki/Telephoto_lens

    A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length of the lens is shorter than the focal length. [1] : 93 This is achieved by incorporating a special lens group known as a telephoto group that extends the light path to create a long-focus lens in ...

  5. Ultrawide formats - Wikipedia

    en.wikipedia.org/wiki/Ultrawide_formats

    For the type of camera lens, see Ultra wide angle lens. Ultrawide formats refers to photos, videos, [1] and displays [2] with aspect ratios greater than 2. There were multiple moves in history towards wider formats, including one by Disney, [3] with some of them being more successful than others. Cameras usually capture ultra-wide photos and ...

  6. 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.

  7. Freepik - Wikipedia

    en.wikipedia.org/wiki/Freepik

    Freepik (stylized as FREEP!K) is an image bank website.Content produced and distributed by the online platform includes photographs, illustrations and vector images. The platform distributes its content under a freemium model, which means that users can access much of the content for free, but it is also possible to purchase a subscription with advantages such as access to more exclusive ...

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