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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 20 Dec 2010 (Monday) 16:31
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Anyone fix their own lens

 
PNPhotography
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Dec 20, 2010 16:31 |  #1

My 85 F1.8 has been doing the same thing it did last year.It's slowly been missing more and more shots OOF.this happened last BBAll season to the point it wouldn't focus at all.I sent it to Canon($135) and they said something worked loose.I'm no dummy fixing or making things (35yr toolmaker) and I'm not afraid to take it apart but what would stop me it if I'd need a special tool to assemble it back together.It's been long out of warranty,Anyone here try this??? Any tips would be awesome.I really don't want to spend another $135 to get it fixed AGAIN.I had a real feeling it's just a loose mounting screw.
Thanks,
Paul


6D|7D|7DMKII|Nikon D750|Nikon 85 F1.8|Nikon D5500|G15| Gripped|300F4|35F2IS|8​5 F1.8|135L F2|200L F2.8|17-55 F2.8|70-200L F2.8 MKII|430EX|
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lannes
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Dec 20, 2010 17:41 |  #2

Do you have the equipment to calibrate it after the fix ? Does your camera body have micro adjustment ?


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supracuhz
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Dec 20, 2010 17:43 |  #3

sounds like a bad idea.


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kokakaste2
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Dec 20, 2010 17:45 |  #4

Only thing I fixed was my 50 1.8 after I dropped it. :) But its quite simple design comparing to the 85 1.8


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TooManyShots
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Dec 20, 2010 18:11 |  #5
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Hmmmm...no. Don't know how does AF work. No way to check for accuracy while fixing it. Fixing lens is like trying to fix your own computer motherboard without knowing about circuits and electrical engineering. Or trying to make your operating system to run faster by re-complying your programing code without knowing anything about programing language. Why do people feel that they can fix their own lenses?


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PNPhotography
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Dec 20, 2010 19:10 |  #6

Well toomanyshots like I said when I sent it back to Canon they said that it was just something about the focus motor was loose.I was hoping not to spend another $135 for something that might happen.Maybe just a loose screw perhaps.


6D|7D|7DMKII|Nikon D750|Nikon 85 F1.8|Nikon D5500|G15| Gripped|300F4|35F2IS|8​5 F1.8|135L F2|200L F2.8|17-55 F2.8|70-200L F2.8 MKII|430EX|
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mavericksupersonic
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Dec 20, 2010 19:19 |  #7

If you are having the same problem as the last time you had it repaired, I would call them up and explain that it seems to be the same problem.

If you want to try fixing it yourself, you can find some diagrams online for different lenses, but I wouldn't recommend it unless you are willing to write off the lens as a loss if you mess it up or can't get it back together properly.


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joeseph
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Dec 20, 2010 19:50 |  #8

I don't know anything about this company, but they list a 85mm f/1.8 repair manual on this page: http://www.photobookso​nline.com/books/manual​01CANLENS.html (external link)


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StarTzar
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Dec 20, 2010 20:00 |  #9

canon rookie wrote in post #11486495 (external link)
My 85 F1.8 has been doing the same thing it did last year.It's slowly been missing more and more shots OOF.this happened last BBAll season to the point it wouldn't focus at all.I sent it to Canon($135) and they said something worked loose.I'm no dummy fixing or making things (35yr toolmaker) and I'm not afraid to take it apart but what would stop me it if I'd need a special tool to assemble it back together.It's been long out of warranty,Anyone here try this??? Any tips would be awesome.I really don't want to spend another $135 to get it fixed AGAIN.I had a real feeling it's just a loose mounting screw.
Thanks,
Paul

Not having the right tools to do the job is the only thing that would stop me from fixing a broken lens. Then again, I would probably try anyway. You would think that for $135.00..... Canon would get it right the first time.
You couldn't do any worse than whomever tried to fix it at Canon.




  
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WideOpen
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Dec 20, 2010 21:01 as a reply to  @ StarTzar's post |  #10

Any pics? I would try finding a local camera shop that may be able to do it.




  
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Anyone fix their own lens
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