When I press the shutter, I can hear a noise inside the lens ( USM?), and it continues until the shutter is released. Is there something wrong or is it normal?
davudvl Member 60 posts Joined Dec 2005 More info | Jun 01, 2008 11:03 | #1 When I press the shutter, I can hear a noise inside the lens ( USM?), and it continues until the shutter is released. Is there something wrong or is it normal? 30D . Speedlite 580EX. 50 1.4, 100 2.8, 24-105L, 70-200 4.0L, 70-200 2.8IS L.
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Jun 01, 2008 11:10 | #2 The USM can be heard when the lens auto-focus' and the IS gyro's can be heard as long as the shutter button is held half-way. EOS 350D + Kit 18-55 lens (looking to donate) , EOS 30D 18-270 Tamron (wife's), 7D MkII
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ef2 Goldmember  1,135 posts Joined Jan 2008 Location: Pittsburgh More info | Jun 01, 2008 11:38 | #3 Also it lasts for about 5 seconds after you release the shutter without depressing fully. 5D Mk III
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Thank you for the replies. This puts my mind more at ease. I was worried, bec the noise coming out of the 70-200 is much louder than my 24-105. 30D . Speedlite 580EX. 50 1.4, 100 2.8, 24-105L, 70-200 4.0L, 70-200 2.8IS L.
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SkipD Cream of the Crop  20,476 posts Likes: 165 Joined Dec 2002 Location: Southeastern WI, USA More info | Jun 01, 2008 11:58 | #5 What you hear is probably the spinning gyroscopes for the IS system. Skip Douglas
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