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01/27/2010 10:06:58 AM · #1 |
OK. This is kinda freaking me out.
Just got this unbelievably awesome bad boy last Thursday and I've had it in my bag walking around a fair bit. When it is not attached to the camera, it makes a clunking noise when it moves around.
Like something heavy is loose inside.
I have 5 other lenses in my bag including another IS lens and I get no noises like that from any of them.
Is this normal?
The noise disappears once it is attached to the camera and focuses for the first time - Tight as a drum.
But once I take it off, it is all loose inside.
I don't want to shake it around too much because I'm worried.
I do understand that with IS lenses, you have to wait 2 seconds after powering down the camera to remove the lens. I read the manual before putting it on the first time and I have followed this advice every time.
Anyone? |
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01/27/2010 10:44:13 AM · #2 |
Hi Keiran,
Not of much help perhaps but I have the non IS version of the 100mm macro. It also rattles more than any of the other lenses I've had. I never took much interest to the rattling before, but the lens has been working great for a few years already, and hopefully many more to come ;)
Though you might find this post of interest
//photo.net/canon-eos-digital-camera-forum/00VIzl
and
//www.eos-magazine-forum.com/showthread.php?1150-100mm-F2-8-IS-L-Macro-rattle
From what I read, you shouldn't have to worry.
Message edited by author 2010-01-27 10:47:30. |
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01/27/2010 12:10:40 PM · #3 |
Thank you.
This post was particularly helpful:
Originally posted by Glenn Wright:
I have the 100mm L IS and I can tell you the rattling when held vertically is perfectly normal . I, like you was concerned when I first noticed it and I did a bit of research, posted the question in a couple of other forums and went to a couple of dealers to rattle theirs and they did. It's the new IS system as the elements have to move perpendicular to the light path. So they have to move side to side freely as well is tilting to counter the effects of camera shake. So when you hold the lens vertically, the IS elements are actually sitting centred so when you gently shake it, they move side to side. turn the lens horizontally, they don't. But when you attach the lens to your camera and power it up, the rattling stops as the IS is engaged and all you'll hear is that whirring sound you mentioned. Basically, you have nothing to worry about. Good luck with your new tool, it's a fabulous lens! |
I'm worried though about if I jog or something while the lens is in the bag. I wonder if I can arrange the lens in a different way to avoid this.
Message edited by author 2010-01-27 12:11:21. |
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01/27/2010 12:18:32 PM · #4 |
Mine does the same, my solution was to make it my primary lens! Mine will clunk periodically after switching from manual to autofocus as well. If you give it a very gentle shake you will feel movement of the interior elements.
It's a fantastic lens. |
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01/27/2010 12:20:54 PM · #5 |
yeah, I enjoyed viewing some of the stuff you have done with it already. B&W macro. COOOL.
I was considering making it my primary lens as well, but I usually keep the 17-55 on there as it is much more frequently used. |
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