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Archive 2013 · Canon 100mm macro loose rear element help
  
 
TWeistar
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p.1 #1 · p.1 #1 · Canon 100mm macro loose rear element help


I have a canon 100mm macro USM non L that I am looking to buy. The owner let me try it out since I discovered that the rear lens element barrel is very loose. It can move side to side about 2-3mm and rattles when I shake it. I did some test shots and the close (macro) 6" from subject seem pretty sharp but shots from 6-8' are soft, not near as sharp as my 85 1.8 or my 70-200 f 4 @ 100mm.

Is the loose lens barrel normal? Does any one else have this on their lens? Anyone have this fixed by Canon? How much did it cost?

Thanks for your help.

Tom





Rough test shot comparison, target 8' from Camera




Sep 10, 2013 at 08:23 AM
eosfun
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p.1 #2 · p.1 #2 · Canon 100mm macro loose rear element help


Ask the seller to have it repaired before you buy. If he is not willing to do that, look further. Why should you buy a lens that has this kind of trouble and maybe more hidden problems? There are enough good macro lenses you can buy. Buying broken lenses is not EOSfun.


Sep 10, 2013 at 08:36 AM
Ian.Dobinson
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p.1 #3 · p.1 #3 · Canon 100mm macro loose rear element help


just walk away , there are plenty of good 100mm macro lenses around (not just canon) so why bother?

also did this really need 2 threads with different titles ?



Sep 10, 2013 at 08:52 AM
Wahoowa
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p.1 #4 · p.1 #4 · Canon 100mm macro loose rear element help


I think it'll cost in the neiborhood of $200 to have it fixed by Canon.

So, unless it's really cheap like $100, I agree with the above...why bother?



Sep 10, 2013 at 12:31 PM
 

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Imagemaster
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p.1 #5 · p.1 #5 · Canon 100mm macro loose rear element help


Ian.Dobinson wrote:
also did this really need 2 threads with different titles ?


Yes, just hit the delete button on your other thread.



Sep 10, 2013 at 03:44 PM
TWeistar
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p.1 #6 · p.1 #6 · Canon 100mm macro loose rear element help


Thanks for the reply. Sorry for the double post, shouldn't be using computers after midnight!

I wasn't so much asking if I should buy it, but more if this is a common problem with this model.



Sep 10, 2013 at 08:17 PM
WilliamFinley
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p.1 #7 · p.1 #7 · Canon 100mm macro loose rear element help


TWeistar wrote:
Thanks for the reply. Sorry for the double post, shouldn't be using computers after midnight!

I wasn't so much asking if I should buy it, but more if this is a common problem with this model.


I've owned two, and NO this is not a common problem that I'm aware of. Don't walk...run away from this one.

Bill



Sep 10, 2013 at 08:25 PM
Jon Joshua
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p.1 #8 · p.1 #8 · Canon 100mm macro loose rear element help


That test shot looks like crap.



Sep 10, 2013 at 09:27 PM





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