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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. Angle of view (photography) - Wikipedia

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

    The camera under test senses a real image of the virtual image of the target, and the sensed image is displayed on a monitor. [9] Monitor display of sensed image from the camera under test. The sensed image, which includes the target, is displayed on a monitor, where it can be measured.

  4. Digital zoom - Wikipedia

    en.wikipedia.org/wiki/Digital_zoom

    Trying to zoom in further than this limit may result in loss of quality as the camera switches to digital zoom, though hybrid zoom may mitigate this. Many cameras, including mobile phone cameras, also employ lossless digital zoom for video recording by using the spare resolution of the image sensor for cropping by taking advantage of used video ...

  5. Zooming (filmmaking) - Wikipedia

    en.wikipedia.org/wiki/Zooming_(filmmaking)

    In filmmaking and television production, zooming is the technique of changing the focal length of a zoom lens (and hence the angle of view) during a shot – this technique is also called a zoom. The technique allows a change from close-up to wide shot (or vice versa) during a shot, giving a cinematographic degree of freedom. But unlike changes ...

  6. List of superzoom compact cameras - Wikipedia

    en.wikipedia.org/wiki/List_of_superzoom_compact...

    This is a list of superzoom compact cameras, also known as travel zoom cameras. [ 1 ] [ 2 ] These are small fixed-lens " point-and-shoot " digital cameras that have a high optical zoom ratio. These cameras all include a power zoom lens that retracts into the body when not in use, along with an automatic lens cover or lens cap.

  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.

  8. Varifocal lens - Wikipedia

    en.wikipedia.org/wiki/Varifocal_lens

    A varifocal lens is a camera lens with variable focal length in which focus changes as focal length (and magnification) changes, as compared to a parfocal ("true") zoom lens, which remains in focus as the lens zooms (focal length and magnification change).

  9. Olympus AZ-4 zoom - Wikipedia

    en.wikipedia.org/wiki/Olympus_AZ-4_zoom

    The camera is almost identical to the Ricoh Mirai, except it does not have a remote control socket and uses different batteries. It was one of the earliest examples of a Superzoom lens, [1] with an ability to zoom from 35 to 135mm. [2] The zoom lens moves slowly compared to modern 35mm cameras, and the autofocus is slower and less reliable. [3]