Relax
It's completely normal, this is how this lens sounds.
I purchased my lens in May and almost had a heart attack when I realized it made that noise. I went to the store and tested 5 different lenses, all made the same noise. I am completely neurotic so I posted on this forum, Fred Miranda, I even e-maild Canon and they all confirmed that is how this lens works.
Enjoy the beautiful images it produces :-)




Reply With Quote
] The sound is a characteristic of the image stabilizer, not an issue. Of course your 70-200 f/4L IS produces a louder sound than your 18-55 f/3.5-5.6 IS because it is larger and therefore has a larger IS machanism.
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