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Author Topic: Movement in the mounting with 70-200mm f2.8L IS II on 7D  (Read 2244 times)

7Dneilan

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Movement in the mounting with 70-200mm f2.8L IS II on 7D
« on: August 30, 2013, 09:17:11 AM »
Hi folks,

I just received my 70-200 2.8 IS II - super excited. Put the lens on the camera (7D) and found that there is 'give' in the mounting.

To compare, my other lens, a 24-105 f4 - does not do this.

Has anyone had this?
Is there a solution?
Should I be worried?

Thanks for any assistance!
7D, 24-105 f4L, 70-200 f2.8L IS II, 580EX II

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Movement in the mounting with 70-200mm f2.8L IS II on 7D
« on: August 30, 2013, 09:17:11 AM »

Jim Saunders

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #1 on: August 30, 2013, 09:19:37 AM »
Yes, no and no in that order.

Jim
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insanitybeard

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #2 on: August 30, 2013, 09:21:31 AM »
it depends on what kind of movement you mean- if you mean with the lens locked in to the body you are able to rotate it very slightly on the mount by the order of half a millimeter or so, I wouldn't worry- some of my lenses do this. If it's a different kind of movement or considerably more than that, then yes I would say there is an issue.
7D / EF-S 10-22 / 17-40L / 70-200 f4L IS / EF-S 60 macro

AudioGlenn

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #3 on: August 30, 2013, 11:12:21 AM »
mine moves a little bit too. it works fine
5D mkIII  |  40 f/2.8 | 8-15 f/4L | 24-70 f/2.8L II | 70-200 f/2.8L IS II | 1.4x III TC | 600ex-rt | 430 ex ii | EOS M+22mm f/2 | EF to EF-M adapter

7Dneilan

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #4 on: August 30, 2013, 11:15:09 AM »
Thank you all,

Insanitybeard, it is indeed that exact movement. And so I guess my only other question, which would seem to have also been answered by your replies, is that this does not affect weather sealing? (just to confirm)

I would like to also point out that ... (as you can imagine), a lot of research was carried out prior to this purchase. And so I was surprised when I opened the box, to discover an included centre-pinch cap as opposed to the vilified edge-pinch - therefore perfect for those who prefer to keep their hoods attached.

Cheers folks!
7D, 24-105 f4L, 70-200 f2.8L IS II, 580EX II

insanitybeard

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #5 on: August 30, 2013, 11:30:23 AM »
As long as it is only rotational movement it should not affect weather sealing, which relies on the contact of the rubber gasket surrounding the lens' mount against the body of the camera. I think the slight rotational play is only due to manufacturing tolerances and how snug a fit the locating pin of the lens release detent is within the corresponding recess of the lens.
7D / EF-S 10-22 / 17-40L / 70-200 f4L IS / EF-S 60 macro

Mt Spokane Photography

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #6 on: August 30, 2013, 11:42:16 AM »
Someone asks this question about every 3 months.  The lens is designed to do that to accommodate tolerances in the mounting.  Most of them are not loose, or move very little, but if it moves too much for you, exchange it.
 
As you can see in this photo of my 100-400L, the hole that the pin on the camera side drops into is not round, but oblong.  Its also a bit oversized.  If tolerances build up so that the camera lock pin is at the far side of the hole, it can move back a tiny amount.  It only seems like its moving a lot.
 

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #6 on: August 30, 2013, 11:42:16 AM »

7Dneilan

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #7 on: August 30, 2013, 09:38:45 PM »
Thank you all,

Am happy to be guided by your experiences. Now, off to have some fun!
7D, 24-105 f4L, 70-200 f2.8L IS II, 580EX II

shashinkaman

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #8 on: September 09, 2013, 02:28:57 AM »
If I were you, I would send it back to Canon to have it checked! You never know, maybe it gets worse over time and in the end even fall off of your camera!! It happened to me with my EF 300mm f/2.8L!! Better be safe than sorry... ???
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Northstar

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #9 on: September 09, 2013, 02:38:58 AM »
Check your image quality obviously, but otherwise no, don't worry about it, it's normal.

My 70-200 does this....and so do most I've checked from both Canon and Nikon.
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chris_w_digits

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #10 on: September 09, 2013, 07:09:29 PM »
My 70-200 non-IS f/2.8L does this on my 5D Mark III and I've never had any problems due to it.   I was a bit relieved a while back when this issue was mentioned in another thread so that I know it's "normal".

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Re: Movement in the mounting with 70-200mm f2.8L IS II on 7D
« Reply #10 on: September 09, 2013, 07:09:29 PM »