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  2. Canon EF 100-400mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_100-400mm_lens

    The EF 100–400 mm f / 4.5–5.6L IS USM is a professional EF mount telephoto zoom lens manufactured by Canon Inc. The first version of this lens was announced in September 1998, and an updated version was announced in November 2014. It is a high performance telephoto lens most often used for sports and wildlife photography.

  3. Canon EF 400mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_400mm_lens

    The 400mm f / 4 DO IS II USM, which replaced an earlier version of the same lens in 2014, [3] is one of only two Canon lenses that make use of diffractive optics (the other is the EF 70–300mm f/4.5–5.6 DO IS USM). The use of diffractive optics allows the lens to be significantly lighter than it might otherwise be.

  4. Canon EF 200-400mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_200-400mm_lens

    The EF 200–400 mm f / 4L IS USM Extender 1.4× is an EF mount super telephoto zoom lens produced by Canon. It is part of the professional L-series and functions with the Canon EOS line of cameras. The EF 200–400 mm lens features an ultrasonic motor, image stabilization and weather sealing. It is the first and only EF lens with a built-in ...

  5. List of standard zoom lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_standard_zoom_lenses

    There is no precise definition of the term, but lenses marketed as "standard zoom" usually cover a range of at least 30mm to 70mm in terms of 35mm equivalent focal length with an optical zoom ratio of 2.5× (e.g. 28-70mm) to 5× (e.g. 24-120mm) — the most common being 3× (e.g. 24-70mm). [1]

  6. Canon Extender EF - Wikipedia

    en.wikipedia.org/wiki/Canon_Extender_EF

    The Canon Extender EF lenses are a group of teleconverter lenses made by Canon. These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. When used with a compatible lens, they will multiply the focal length of the lens by a factor of either 1.4x or 2x, at the cost of decreasing the lens' aperture by 1 ...

  7. Category:Canon EF lenses - Wikipedia

    en.wikipedia.org/wiki/Category:Canon_EF_lenses

    Canon EF 35–350mm lens; Canon EF 50-200mm lens; Canon EF 50mm lens; Canon EF 70–210mm lens; Canon EF 75–300mm lens; Canon EF 90–300mm lens; Canon EF 100-400mm lens; Canon EF 135mm lens; Canon EF 300mm lens; Canon EF 400mm lens; Canon EF 1200mm lens; Canon Extender EF; Canon TS-E 17mm lens; Canon TS-E 24mm lens; Canon TS-E 45mm lens ...

  8. Template:Canon EF Mount zoom lenses timeline - Wikipedia

    en.wikipedia.org/wiki/Template:Canon_EF_Mount...

    This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.

  9. Zoom lens - Wikipedia

    en.wikipedia.org/wiki/Zoom_lens

    A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens . A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its focal length changes. [1]

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