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Technical Support / EF 70-200 f/2.8 IS USM II strange IS noise - does the lens need to be repaired?

« on: January 20, 2012, 04:06:17 PM »

My 70-200 f/2.8 IS USM II is making loud (relatively) noises when the IS kicks on and off. Sometimes, it's the same loudness, and other times it makes a really good ratcheting sound. Otherwise, the lens (and IS) operates just fine.

A small mp3 of the sound (it's several cycles of me hitting the shutter release halfway, then releasing): http://dl.dropbox.com/u/35535541/70-200mmISUSM2.mp3

I'm assuming this is abnormal, since it's a louder IS on/off sound than any other IS lens I've heard, but I have no other 70-200mm lens to compare it to. I'm wanting to make sure Canon doesn't think I'm being too picky if I send it in for warranty repair.

And any pointers if/when I send it to Canon?

Thanks for your time!

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Lenses / UV filter for 70-200mm f/2.8 IS II?

« on: April 07, 2011, 09:54:37 AM »

Yes, I filter my lenses, and I'm looking for one for my 70-200mm f/2.8 IS II.  Do you guys have any recommendations or favorites when it comes to UV filters?  I've been looking at the B+W F-Pro filter.

Thanks!