ef12

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    EF12 and EF25 extension tubes

    I was just gifted a pair of Canon extension tubes (EF12, EF25), and have discovered that they do not fit the EFS lenses I have that were made for 22.5x15mm sensors. There's a light baffle in the extender that's too close to the lens, or with too small an opening, depending on how you look at...
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