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    Home»Canon Patents»Patent: Canon EF 135 f/2L w/Apodization Filters
    svg+xml;base64,PHN2ZyB2aWV3Qm94PScwIDAgNzI4IDEwMjQnIHhtbG5zPSdodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2Zyc+PC9zdmc+ - Patent: Canon EF 135 f/2L w/Apodization Filters

    Patent: Canon EF 135 f/2L w/Apodization Filters

    By Canon RumorsDecember 26, 2016Updated:December 26, 2016No Comments1 Min Read Canon Patents
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    Canon has filed a patent for an EF 135mm f/2L optical formula with apodization filters.

    From Wikipedia (Via TDP):

    Apodization is an optical filtering technique, and its literal translation is “removing the foot”. It is the technical term for changing the shape of a mathematical function, an electrical signal, an optical transmission or a mechanical structure. In optics, it is primarily used to remove Airy disks caused by diffraction around an intensity peak, improving the focus.

    Patent publication number 2016-218444 (Google Translate)

    • Release date 2016.12.22
    • Application date 2015.5.20
    • Focal length 130.98
    • F number 2.06
    • Field of View 9.38
    • Image height 21.64
    • Lens total length 159.05
    • BF 53.99
    • Even when there is vignetting, a good blurred image at all angle of view

    We have not heard anything regarding a new EF 135mm f/2L lens coming in 2017, but we'll obviously let you know if we do.

    EF 135 f/2L patent
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