24-105L Owners, tell me this is normal
/forum/topic/1157049/0



SwampYankee
Registered: Nov 16, 2010
Total Posts: 59
Country: United States

Hi,

Using a 24-105L on an new 5DIII. Lens snaps right into focus, but there is a motor "whirring" sound right after focus and then a mechanical soft click. maybe less than 1/2 a second after focus. Focus never changes. It's definitely the is the IS motor as there is no noise when I turn it off. Not sure how IS works so perhaps this is normal. Can any owners tell me is this is normal or the experience the same thing?

thanks



dhb820
Registered: Aug 11, 2012
Total Posts: 920
Country: United States

I have the 24-105 and the 100-400,, both with IS. I hear the noise with the 100-400, but not the 24-105.



jcolwell
Registered: Feb 10, 2005
Total Posts: 20252
Country: Canada

Perfectly normal. What you describe sounds exactly like mine - I just tried it. Of course, there is very little ambient noise here. In many normal situations, you won't hear it, at all.

The IS on this lens is actually more quiet than many older, first-gen IS lenses, like the 300/4L IS. The delayed soft mechanical click is the IS turning off, after you release the shutter button.



RobertLynn
Registered: Jan 05, 2008
Total Posts: 11506
Country: United States

Almost all of the IS lenses I've owned have sounded slightly different.



scalesusa
Registered: Sep 02, 2008
Total Posts: 2337
Country: United States

Some people hear the IS motor better than others, and some motors make more noise. Its hard to tell which is which when comparing with another person. If you can, try another lens and see if its the same. They all make noise, but yours might be going out.



EB-1
Registered: Jan 09, 2003
Total Posts: 22288
Country: United States

Sounds normal to me.

EBH



erikburd
Registered: Feb 03, 2010
Total Posts: 559
Country: United States

The 70-200 f/4L IS has a pretty loud (relatively speaking) IS sound. You an easily hear it whirring up and then clicking when it stops. The 300 f/4L is similar with regards to sound.



SwampYankee
Registered: Nov 16, 2010
Total Posts: 59
Country: United States

Thanks guys. I live with 5 women so it's never quite in the house. I've owned this lens for 2 years and never heard the sound, but this morning they were all asleep. . Pictures look great from it so it's all good



jcolwell
Registered: Feb 10, 2005
Total Posts: 20252
Country: Canada



timbop
Registered: Dec 29, 2005
Total Posts: 6313
Country: United States

SwampYankee wrote:
...I live with 5 women so it's never quite in the house...


you're lucky you don't end up sitting in a corner talking to yourself, so hearing a little motor whirr is all good



StillFingerz
Registered: Jul 29, 2010
Total Posts: 3208
Country: United States

erikburd wrote:
The 70-200 f/4L IS has a pretty loud (relatively speaking) IS sound. You an easily hear it whirring up and then clicking when it stops. The 300 f/4L is similar with regards to sound.


+1