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Thread: Canon lens date code

  1. #1
    Ollokot's Avatar
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    Canon lens date code

    Hello to all, could anyone relieve my confusion concerning a date code on the Canon EF 70-200 f4 L IS USM Lens.
    I believe this lens was released in 2006, the date code on it seems to be UD 0323 which reads on my code list March 1989.
    I enclose a picture of the date code on the lens.
    Would be most grateful for any enlightenment.
    Regards, Pat.
    Attached Images Attached Images

  2. #2
    Round Tuit's Avatar
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    Re: Canon lens date code

    For what it's worth, Canon Classic website shows March 1963 or 1973 or 1983 for code UD0323. The web site the-digital-picture.com shows the date as March 2006 which is probably more reliable.
    Last edited by Round Tuit; 20th July 2025 at 01:46 PM. Reason: Add information

  3. #3
    Ollokot's Avatar
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    Re: Canon lens date code

    Thank you very much for your reply. I have since discovered that the date codes restarted again at A in 2012.
    That would make UD0323 March 2015.

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