EF 17-40mm f/4L USM

Started Feb 13, 2012 | Discussions thread
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triplejck New Member • Posts: 14
Re: EF 17-40mm f/4L USM

I happened across your postsince I just bought a used 17-40 as well.
FYI: I did not hear the the high pitched noise that you posted on you tube.

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