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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 16 Feb 2014 (Sunday) 20:10
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EF-S Autofocus Problem

 
arrow206
Hatchling
2 posts
Joined Feb 2014
     
Feb 16, 2014 20:10 |  #1

Hi Everyone,

I'm hoping someone can confirm what I'm suspecting - I should send this lens in for repair.

I have a Canon branded EF-S 17-85mm lens that's having a hard time locking the autofocus. It gets close and then just jumps between two points. I believe the lens is the problem, because it exhibits the same symptom on both bodies I have (Rebel XTi and XS.) Additonally, my other lenses don't have the same problem on either body. Manual focus on the problem lens works fine.

Can anyone speculate what might be wrong with it? Is it worth repairing? Should I send this directly to Canon for repair, or is there (in Canada) a best third party repair shop I should consider?

Thanks in advance,




  
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Keyan
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Feb 16, 2014 20:19 |  #2

I have actually seen another one of these do this. At the time I let the person borrow my 18-135, which worked perfectly. Any repair of a lens I would personally have done by Canon. That said, I am not sure it is worth the repair. The lens is discontinued and quite old. I would consider putting your money towards a newer lens with likely better image quality and performance.


Cameras: 7D2, S100
Lenses: 17-55 f/2.8 IS USM, 18-135 STM, 24-70 f/4L IS USM, 50 f/1.4 USM,70-300L IS USM
Other Stuff: 430 EX II, Luma Labs Loop 3, CamRanger

  
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3Rotor
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Feb 16, 2014 20:33 |  #3

Are you getting "Error 01" or "Error 99" messages?


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arrow206
THREAD ­ STARTER
Hatchling
2 posts
Joined Feb 2014
     
Feb 16, 2014 20:35 |  #4

I was getting error 99 messages during the summer, which is around the time the problem started. The mirror on the body was making odd noises at that time as well, but that seems to have since cleared up. I attributed the errors to the horrendous east coast humidity (probably not, but it made me feel better at the time ;))




  
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EOS5DC
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Feb 16, 2014 20:37 |  #5
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Use it for a paperweight. Put the money toward a 15-85. I think you'll like the upgrade.


Bodies: 60D, 6D.
EFs: 15-85, 10-22
EF: 28-75, 35 f/2 IS, Σ70-200 OS, 100-400L
Flash: 580EX II, 430 EX II

  
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3Rotor
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Feb 16, 2014 20:42 |  #6

The EF-S 17-85 is notorious for it's aperture ribbon to fail over time. It was my first lens and the same happened to mine, it was intermittent. Sometimes I would have to turn the camera off several times to get the lens to function normally, then it would be fine for about a week or two. It only gets worse, it became a daily issue. Then the lens would not focus from ~50-85mm, finally it just quit focusing.

Some people managed to do the repairs on their own for less than $30 in parts. You should be able to find some DIYs on the boards if you do a little bit of searching.


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RWK
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Feb 16, 2014 23:33 as a reply to  @ 3Rotor's post |  #7

About $130 for Canon to fix it. I'm thinking about a 18-135 STM for a replacement.


Rebel T4i 18-55 IS Kit Lens :cool:
Rebel XT Kit Lens
EF-S 17-85
EF 50 1.8
EF 70-300
EF-S 18-135 STM

  
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EF-S Autofocus Problem
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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