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  2. Canon EF 500mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_500mm_lens

    The EF 500mm f / 4L IS USM with a Canon 2x Extender, rigged with flash and monopod. A typical setup for when taking photographs of birds. The EF 500mm f / 4L IS USM is a professional L series lens that was designed to replace the EF 500mm f / 4.5L USM. This lens is constructed with a metal body and mount, and with plastic extremities and switches.

  3. Canon EF 600mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_600mm_lens

    The Canon EF 600mm is a super-telephoto lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. f / 4L USM lens was released in November 1988 (923,000 yen). [1] f / 4L IS USM lens was released in September 1999 (1,290,000 yen). [2] f / 4L IS II USM lens was announced in February 2011 (US$12,999 at release, now US ...

  4. Canon Extender EF - Wikipedia

    en.wikipedia.org/wiki/Canon_Extender_EF

    With a 2× extender a 400mm f/4 lens would have an equivalent focal length of 800mm and a maximum aperture of f/8, in which case autofocus would only be available with professional bodies. With the same converter a 400mm f/5.6 lens would have a maximum aperture of f/11 and autofocus would be disabled.

  5. Canon L lens - Wikipedia

    en.wikipedia.org/wiki/Canon_L_lens

    The 70-200 mm f/2.8L lens. Canon's series of L lenses (Luxury lenses) are a professional line of photography lenses made by Canon.Canon has sold zoom and prime L-series lenses for the discontinued FD lens mount, for the current EF lens mount used on all Canon EOS SLR cameras and for the RF mount used on mirrorless interchangeable-lens cameras.

  6. Canon EF 400mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_400mm_lens

    The Canon EF 400mm are seven super-telephoto lenses made by Canon. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers. [1] Canon has manufactured four 400mm prime lenses: EF 400mm f / 2.8L IS III USM; EF 400mm f / 2.8L IS II USM [2] EF 400mm f / 4 DO IS II USM ...

  7. 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.

  8. Canon EF lens mount - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_lens_mount

    Number of Canon EF lenses sold over time (red), compared with Nikon F mount lenses (blue) The EF mount replaces its predecessor, the FD mount.The standard autofocus lens mounting technology of the time used a motor in the camera body to drive the mechanics of the focus helicoid in the lens by using a transfer lever.

  9. Lens speed - Wikipedia

    en.wikipedia.org/wiki/Lens_speed

    A fast prime (fixed focal length) lens, the Canon 50mm f / 1.4 (left), and a slower zoom lens, the Canon 18–55mm f / 3.5–5.6 (right); this lens is faster at 18mm than it is at 55mm. Lens speed is the maximum aperture diameter, or minimum f-number , of a photographic lens .

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