I dropped my Canon 35mm EF f/2 lens on my carpeted bedroom floor and now AF and MF will not work.
Is it easy to repair myself or should I try to find someone to repair it? I really do not have the money to purchase another one at the moment.
Shooting Goldmember ![]() 1,552 posts Likes: 3 Joined Jan 2008 More info | Dec 07, 2013 17:15 | #1 I dropped my Canon 35mm EF f/2 lens on my carpeted bedroom floor and now AF and MF will not work.
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shaftmaster Goldmember ![]() 1,429 posts Likes: 1 Joined Nov 2008 Location: above 5000 feet More info | Dec 07, 2013 17:55 | #2 Lack of both AF and MF sounds like something might be jammed versus an AF electrical problem. Hard to say if you could fix it yourself, but I would guess not unless you've fixed rather delicate mechanical things before.
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Dec 07, 2013 18:04 | #3 Humm..I'm not that mechanically inclined so I'll pass on doing it myself, I have no idea of where to start. I have a quote from a place they will fix it for $105. If they in fact will do that, it may be worth it.
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Hogloff Cream of the Crop 7,606 posts Likes: 415 Joined Apr 2003 Location: British Columbia More info | Dec 08, 2013 10:02 | #4 ![]() Shooting wrote in post #16509534 ![]() Humm..I'm not that mechanically inclined so I'll pass on doing it myself, I have no idea of where to start. I have a quote from a place they will fix it for $105. If they in fact will do that, it may be worth it. If not then I will try to sell it for parts like you said. thanks. Make sure this place not only fixes it mechanically, but they also have calibration equipment on site. You might pay $105 and get a lens that will focus again, but be totally out of calibration.
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gjl711 "spouting off stupid things" ![]() 56,204 posts Likes: 2902 Joined Aug 2006 Location: Deep in the heart of Texas More info | Dec 08, 2013 10:14 | #5 The trouble is that until you open up the lens to assess the problem, no one can give you an answer. It could be something as simple as a stuck gear or lever arm, or it could be a broken wire, or it could be a blown board or something completely different. Opening and taking apart a lens is simple, pretty much if you can use a screwdriver, you can take a lens apart. Getting it back together and working properly is a bit tougher. Not sure why, but call me JJ.
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Dec 08, 2013 10:21 | #6 I dropped a 24-105 f/4L attached to a body. Not far, from a seat to a bus floor, and somehow it stopped focusing as well. No AF or MF. 1D MkIV | 1D MkIII | 550D w/grip & ML| EF 70-200mm f2.8L| EF 24-105mm f4L IS | Canon EF 100-400mm f/4.5-5.6L IS | Samyang 14mm f/2.8 IF ED UMC | 430EXii | EF 50mm f1.8
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Dec 08, 2013 10:34 | #7 gjl711 wrote in post #16510766 ![]() The trouble is that until you open up the lens to assess the problem, no one can give you an answer. It could be something as simple as a stuck gear or lever arm, or it could be a broken wire, or it could be a blown board or something completely different. Opening and taking apart a lens is simple, pretty much if you can use a screwdriver, you can take a lens apart. Getting it back together and working properly is a bit tougher. But I have no idea of what to look for. There are about 5 screws on the back I can take out and then what would I be looking for? I don't know the contents or what they should look like to determine if it is something I can "spring" back into place or not.
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Dec 08, 2013 10:37 | #8 waterrockets wrote in post #16510781 ![]() I dropped a 24-105 f/4L attached to a body. Not far, from a seat to a bus floor, and somehow it stopped focusing as well. No AF or MF. This may help the OP: I discovered shortly afterwards that I was able to re-engage focus by racking focus very far in both directions, and it would eventually catch (only one or two tries in each direction). Once it catches, AF and MF work fine. It does stop working occasionally now, but racking focus always fixes it. I've been thinking about popping it open to see if I can fix it myself... I'll tried that and the ring keeps turning non-stop. Is there a limit of how far it should turn? I'm doing this with the switch in MF and it is so hard to turn.
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advaitin Goldmember ![]() 4,624 posts Gallery: 434 photos Best ofs: 2 Likes: 849 Joined Jun 2003 Location: The Fun Coast of Florida More info | Dec 08, 2013 10:37 | #9 Sometimes you have to bite the bullet and send it to Canon repair. Canons to the left, Canons to the right,
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gjl711 "spouting off stupid things" ![]() 56,204 posts Likes: 2902 Joined Aug 2006 Location: Deep in the heart of Texas More info | Dec 08, 2013 10:52 | #10 Shooting wrote in post #16510808 ![]() But I have no idea of what to look for. There are about 5 screws on the back I can take out and then what would I be looking for? I don't know the contents or what they should look like to determine if it is something I can "spring" back into place or not. My point was that if you don't know what you are looking for and not resonably confidant you can get things back together and have the lens still be calibrated, send it in. Not sure why, but call me JJ.
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Dec 08, 2013 11:50 | #11 gjl711 wrote in post #16510857 ![]() My point was that if you don't know what you are looking for and not resonably confidant you can get things back together and have the lens still be calibrated, send it in. That is true. Or since it is almost totally broken, get a rubber hammer to lightly bang around the ring and see if it releases something.
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Dec 08, 2013 11:51 | #12 advaitin wrote in post #16510822 ![]() Sometimes you have to bite the bullet and send it to Canon repair. True but I'll try not to do that, costs a lot. I'll have to weigh the pros and cons on it. No job, no photography jobs coming up so got to watch my pennies at the moment.
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Dec 08, 2013 20:55 | #13 Well, I took a wooden handled knife and started firmly tapping the focusing ring all around a few times, turning, hitting, about 5 cycles and now it turns as smooth as anything and autofocuses now. Acts like it is fixed and I tried various ranges and all are in focus still so I guess it doesn't need any calibration. If it holds then it is fixed, if not - Canon here it comes. I got the estimate a few hours ago from them, about $109.00
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xarqi Cream of the Crop ![]() 10,435 posts Likes: 1 Joined Oct 2005 Location: Aotearoa/New Zealand More info | Dec 08, 2013 21:57 | #14 Skillful fix!
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Dec 09, 2013 17:53 | #15 hahaha. Thank you. Who said ingenuity doesn't exist. I shot some today with it and it still works perfect.
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