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Thread: Canon MTF Question

  1. 08-01-2010, 03:02 PM #1
    canoli
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    Canon MTF Question



    I can't find a definitive answer to one simple question re: Canon MTF charts:


    Do the black lines mean "wide open" or do they always represent f/2.8?


    I assume they must mean "wide open" because of course some lenses only open up to f/4...but it'd be nice to get a clear answer.


    Looking at the 35L for example...


    http://www.usa.canon.com/cusa/professional/products/professional_cameras/ef_lens_lineup/lens_wide_pro/ef_35mm_f_1_4l_usm#Overview


    Thanks!





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  2. 08-01-2010, 07:35 PM #2
    Johnny Rasmussen
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    Re: Canon MTF Question



    The black lines means wide open.


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  3. 08-02-2010, 11:16 AM #3
    canoli
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    Re: Canon MTF Question



    Grazie.
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