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Thread: Lens Aperture

  1. #1
    Shadowman's Avatar
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    Lens Aperture

    Is the aperture of the lens as recorded by exif an electronic signal or an actual measurement? I ask because when using a teleconverter on a lens with max aperture of f/40 exif shows aperture f/81.

  2. #2
    Black Pearl's Avatar
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    Re: Lens Aperture

    Electronic - put a manual lens on and nothing is recorded.

  3. #3
    Moderator Dave Humphries's Avatar
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    Re: Lens Aperture

    I agree, I assume the TC is a 1.4x losing one stop and it (I assume) is chipped in someway so that the camera (or TC) multiplies the lens' aperture by 2 before recording EXIF.

  4. #4
    Shadowman's Avatar
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    Re: Lens Aperture

    Hi Robin and Dave,

    Thanks for responding.

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