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Archive 2023 · Weird noise from purchased used 24-105 F4 RF lens

  
 
pulper11
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p.1 #1 · Weird noise from purchased used 24-105 F4 RF lens


Hello - I just purchased a used 24-105 F4 RF lens. Just received it an hour ago. I've shot with it now (about 10 shots total) and I notice a weird noise that I've never noticed before.

I took a video of it and I'm hoping someone can shed some light on this for me. I don't know if this is normal for this lens (like the old 70-200 F4 IS lens had weird IS noise). It seems as though the noise is coming from movement in the front area. I am not shaking the lens that much in the video, despite what it might look like. The video is linked below.

https://flic.kr/p/2oDh4S4

Thank you.



May 27, 2023 at 03:29 PM
gdanmitchell
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p.1 #2 · Weird noise from purchased used 24-105 F4 RF lens


I'm not positive that this is true of your lens — perhaps someone else will verify — but I think this this is normal. My experience is based on using some Fujifilm lenses that behave the same way. If the same system is in place...

If I understand correctly, the AF system (or is it the IS?) uses magnets that are not active when the lens is off the camera or the camera is turned off. Elements are free to move when there is no power applied to the lens.

I hear this, for example, on my Fujifilm 80mm f/2.8 macro, a lens that pushes a fair amount of glass around. When the power is off, something inside the lens (as best I can describe it) slides back and forth. When the camera power is not it does not do this.

Does your lens do it when it is attached to the camera with the camera fully powered up? If not, I think this is a normal situation.

It is somewhat unnerving, but (again assuming I'm right about this) it is normal. "They" say that there is no risk to the lens.

Dan



May 27, 2023 at 03:47 PM
Gochugogi
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p.1 #3 · Weird noise from purchased used 24-105 F4 RF lens


Front barrel extension focus—especially with plastic parts—always has some wobble and play and will get worse with use. If I shake mine, it does the same thing and sounds similar. It's hard to judge loudness but mine is pianissimo—just audible from a few feet away when indoors. The IS assembly will also percuss if you shake it enough. In the FB EOS groups I see these posts regularly. Some guys even grab the barrel when extended and wobble it back and forth, increasing the play...


May 27, 2023 at 03:50 PM
Zenon Char
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p.1 #4 · Weird noise from purchased used 24-105 F4 RF lens


Mine has a bit of a sound when I shake it or move it. You are near a window so I don’t know if that sound is being bounced off and amplified. Also recorded sound can be more hollow or tinny sounding.


May 27, 2023 at 04:02 PM
jedibrain
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p.1 #5 · Weird noise from purchased used 24-105 F4 RF lens


I don't think any RF lenses 'park' the IS mechanisms when off anymore. So they make a nose when wobbled.

-Brian



May 27, 2023 at 06:09 PM
Zenon Char
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p.1 #6 · Weird noise from purchased used 24-105 F4 RF lens


jedibrain wrote:
I don't think any RF lenses 'park' the IS mechanisms when off anymore. So they make a nose when wobbled.

-Brian


Yes RF is IS on an electromagnetic system, just like IBIS. Even if you shut the lens IS off (which in turn shuts off IBIS) the system s still energized. It does not stabilize but it is still runs unit you power down or the camera goes to sleep.

To avoid the delay when my cameras wake up when I bring the EVF to my eye I've set it up so the system never goes to sleep. The IS/IBIS runs continually but I don't care as it uses little power and there are no moving parts like EF IS. Both the EFV (which uses a lot of power - the most of all items) and the LCD are not active while while I'm waiting for the next bird. It isn't instant like the mechanical OVF but it is pretty close.



May 28, 2023 at 10:24 AM
Pixelpuffin
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p.1 #7 · Weird noise from purchased used 24-105 F4 RF lens




gdanmitchell wrote:
I'm not positive that this is true of your lens — perhaps someone else will verify — but I think this this is normal. My experience is based on using some Fujifilm lenses that behave the same way. If the same system is in place...

If I understand correctly, the AF system (or is it the IS?) uses magnets that are not active when the lens is off the camera or the camera is turned off. Elements are free to move when there is no power applied to the lens.

I hear this, for example, on my Fujifilm 80mm f/2.8
...Show more

What you describe is what drove me mad years ago when I had a VERY short fling with the lumix system. I sold my canon gear and purchased 4 bodies and several lenses, I think it was the G8..GX8?? That had ibis …..sent me daft!! Sounded like a pendulum constantly swinging about inside the body when the camera was turned off, it was awful, I couldn’t concentrate as I was constantly waiting for the clunk everytime I raised the camera to switch it on. By the 3rd day I’d had enough, sold the entire system and came back to canon, oh it was heaven!! Like coming home!!




May 29, 2023 at 12:05 PM
EB-1
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p.1 #8 · Weird noise from purchased used 24-105 F4 RF lens


I hear a little noise, but don't normally shake it.

EBH



May 29, 2023 at 01:21 PM
pulper11
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p.1 #9 · Weird noise from purchased used 24-105 F4 RF lens


gdanmitchell wrote:
I'm not positive that this is true of your lens — perhaps someone else will verify — but I think this this is normal. My experience is based on using some Fujifilm lenses that behave the same way. If the same system is in place...

If I understand correctly, the AF system (or is it the IS?) uses magnets that are not active when the lens is off the camera or the camera is turned off. Elements are free to move when there is no power applied to the lens.

I hear this, for example, on my Fujifilm 80mm f/2.8
...Show more

Thanks everyone for your replies! I really appreciate them. I was concerned and now I'm not.

I believe that @gdanmitchell had it correct. When I attach the lens and turn on the camera, the problematic noise goes away. Not all noise but the one I'm concerned with. It almost sounded like a bit of grinding.

I had contacted my seller directly and he was really quick with his response. Responded in less that 30 minutes. It was Kenmore Camera through ebay (acknowledging their great customer service here). There response was as follows:

"That is the image stabilization components. According to Canon, they moved them up further in the lens. Does it make that noise when attached to an EOS R series camera and powered on?"

Thanks again to everyone!



May 29, 2023 at 03:34 PM





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