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  2. 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 ]

  3. 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 ...

  4. Sony Cyber-shot DSC-TX5 - Wikipedia

    en.wikipedia.org/wiki/Sony_Cyber-shot_DSC-TX5

    The camera has a Carl Zeiss lens, with 4x zoom capability, though the digital zoom can go up to 8x. The focal length of the lens is 4.43 - 17.7 mm. The focal length of the lens is 4.43 - 17.7 mm. LCD screen

  5. List of longest smartphone telephoto lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_smartphone...

    This is a list of smartphones with a telephoto lens that offers a focal length (35mm equivalent) of at least 100mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ or larger sensor. Smartphone lenses are often marketed in terms of "optical zoom" [1] relative to the phone's main camera. For example, 120mm is usually referred ...

  6. Digital zoom - Wikipedia

    en.wikipedia.org/wiki/Digital_zoom

    Hybrid zoom is a concept used in smartphones that takes advantage of optical zoom, digital zoom, and software to get improved results when zooming in further than the lens' physical capabilities. [5] Smartphones with optical zoom have lenses with 3× or 5× magnification.

  7. List of standard zoom lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_standard_zoom_lenses

    Sony 28-70mm F3.5-5.6, a standard zoom lens. This is a list of standard zoom lenses that are designed for mirrorless cameras — limit one per brand, focal length, aperture, and zoom mechanism combination.

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