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  2. Digital zoom - Wikipedia

    en.wikipedia.org/wiki/Digital_zoom

    Handheld. Zoom 72×, Optical zoom 10× and Digital zoom 7.2× taken in full resolution 16 MP, but resize to 2 MP for uploading, ISO 800, 1/680, F/14.0, more noise, but the detail is more clear. Magnification in deteriorated digital zoom zone is 72×: 10 = 7.2×, the bigger the number, the worse the image

  3. Comparison of video converters - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video_converters

    Video converter Converts without transcoding Batch convert Join files Converts audio files Converts photos Extract audio Preview Include effects Editing tools DVD burning Blu-ray burning Menu templates Splitting into chapters Converts online videos Subtitles support Upload to YouTube Variable frame rate inputs Any Video Converter: No: Yes: Yes ...

  4. Image conversion - Wikipedia

    en.wikipedia.org/wiki/Image_conversion

    Like any resampling operation, changing image size and bit depth are lossy in all cases of downsampling, such as 30-bit to 24-bit or 24-bit to 8-bit palette-based images.. While increasing bit depth is usually lossless, increasing image size can introduce aliasing or other undesired artifa

  5. Photo print sizes - Wikipedia

    en.wikipedia.org/wiki/Photo_print_sizes

    The specific problem is: The difference or equivalence between 4R, KG, PC, 10 × 15 and A6 (the international postcard size) should be made clearer. Please help improve this paragraph if you can. ( November 2019 ) ( Learn how and when to remove this message )

  6. Teleconverter - Wikipedia

    en.wikipedia.org/wiki/Teleconverter

    Teleside converter cross section. A different type of teleconverter called a teleside converter [2] can be mounted on the front of the camera's lens rather than between the primary lens and the camera body. These are popular with users of video cameras and bridge cameras with fixed lenses, as they represent the only way to add more reach to ...

  7. 35 mm equivalent focal length - Wikipedia

    en.wikipedia.org/wiki/35_mm_equivalent_focal_length

    35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma "H") APS-H format, 1.5× for Nikon APS-C ("DX") format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch ...

  8. Page zooming - Wikipedia

    en.wikipedia.org/wiki/Page_zooming

    Page zoom in LibreOffice Writer. The level of page zoom, expressed as a percentage, can often be accessed using a slider. Other methods include a drop-down menu from with a zoom level can be selected, pinch-to-zoom on touchscreen devices, mouse wheel scrolling (often in combination with holding down a key on the keyboard), or keyboard shortcuts (such as CTRL + +/-).

  9. 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.