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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 22 Mar 2013 (Friday) 23:51
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EF 70-300 making a gear sound during af

 
redneck2112
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Mar 22, 2013 23:51 |  #1

Looking for any reasonable explanation for a gear sound, and a little vibration when af is engaged on my EF70-300 F/4-5.6 IS USM. I know I'm not going to get good news but has anyone else had a similar problem? I'm new here so let the games begin.




  
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samsen
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Mar 23, 2013 00:40 |  #2

Is this a new thing?
IS does make a vibration to say its working properly.
Does it stop when IS is put to off?


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redneck2112
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Mar 23, 2013 01:06 |  #3

I just recieved the lens today. I can hear the vibration of the IS. I've turned it off as well and I don't believe it has anything to do with it as it does'nt effect the other problem. Seems to be the af itself. And when I said a gear sound it's like a muted click that gives off the vibration. Thanks for checkin. I'm stumped on what to do.




  
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DreDaze
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Mar 23, 2013 04:18 |  #4

what AF mode are you in? if you're in AI servo...it will be making a noise throughout most of the time...also you're sure it's not the IS? it still makes a noise when IS is shut off?


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redneck2112
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Mar 23, 2013 16:37 |  #5

I've tried all 3 af modes and turned the IS on and off. Still the same gear sound and vibration.




  
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redneck2112
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Mar 26, 2013 00:49 as a reply to  @ redneck2112's post |  #6

Does any one have a usm lens of any variation that makes a loud clicking noise?




  
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RWK
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Mar 26, 2013 00:51 as a reply to  @ redneck2112's post |  #7

I have 2 with USM - both real quiet.


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DreDaze
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Mar 26, 2013 00:52 |  #8

can you make a video of the noise? when I first bought my camera, the 28-135IS lens it came with sounding like a bomb about to go off...it just had a constant clicking...when i posted here about it making noise, everyone said it was just the IS...until I showed them the video...I returned it, and picked up a functioning one the next day


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Mar 26, 2013 06:09 |  #9

I have owned 12 different Ring Type USM lenses and they are all nearly silent. I think you will have to send the lens back as it should not make noise.


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Scott ­ M
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Mar 26, 2013 07:32 |  #10

msowsun wrote in post #15756537 (external link)
I have owned 12 different Ring Type USM lenses and they are all nearly silent. I think you will have to send the lens back as it should not make noise.

The EF 70-300 IS is not a ring USM lens -- it uses a micromotor instead (similar to the EF 50mm f/1.4). It's been quite a few years since I have owned this lens, but I recall that it's auto focus motor was a little louder than a real USM motor.


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msowsun
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Mar 26, 2013 07:42 |  #11

Scott M wrote in post #15756704 (external link)
The EF 70-300 IS is not a ring USM lens -- it uses a micromotor instead (similar to the EF 50mm f/1.4). It's been quite a few years since I have owned this lens, but I recall that it's auto focus motor was a little louder than a real USM motor.

OOPS! I missed that. :oops: You are right of course. Yes, the Micro-USM is noisier, but it should not vibrate as the OP has said. The lens should probably be sent back or at the very least be checked out by some one who is familiar with these lenses.


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Scott ­ M
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Mar 26, 2013 08:01 |  #12

There was also a recall by Canon on this lens, where the lens would vibrate when held in the portrait position. I sent the copy I owned into Canon for a free repair -- that was probably 6-7 years ago. When returned, the lens was not as loose, either.

You should be able to find the affected serial numbers in links in this thread.


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redneck2112
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Mar 26, 2013 22:53 |  #13

Thanks for the intel




  
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EF 70-300 making a gear sound during af
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