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How they make Canon lenses

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    How they make Canon lenses

    And why they are so expensive.

    http://www.petapixel.com/2010/04/19/...00mm-f4l-lens/
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    #2
    I wonder if canon would show the QA depertment for a certain few lenses.


    Mathematics is to physics as masturbation is to sex.

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      #3
      really cool
      "Men with guts attack those corners!" - Keiichi Tsuchiya
      2006 Acura TL and 1999 Mazda Miata

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