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09-17-2014, 05:44 PM   #1
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Squeaky 16-50

I just purchased this lens, and I've noticed that it makes this really high pitched squealing noise when you focus. You can hear it in the video with the internal mic, and also with a mounted shotgun mic. It's a brand new lens, does it need to be broken in a bit, or is this noise abnormal?

www.youtube.com/v/bsmBnHrPEdI

09-17-2014, 06:11 PM   #2
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How close do you have to be to the lens to hear it? I think, from the video, that sound is the normal SDM sound. When the SDM is failing, it has a loud but inconsistent squeak - at least in my experience. Hopefully some others can help clarify.
09-17-2014, 06:26 PM   #3
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QuoteOriginally posted by JinDesu Quote
How close do you have to be to the lens to hear it? I think, from the video, that sound is the normal SDM sound. When the SDM is failing, it has a loud but inconsistent squeak - at least in my experience. Hopefully some others can help clarify.
It's not loud or anything, but you can definitely hear it. Holding the camera as far away from myself as physically possible, it's not super noticeable but it's there.
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