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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 04 Sep 2010 (Saturday) 05:37
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Exploded view for 24-105? My lens is broken

 
slr_noob
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Sep 04, 2010 05:37 |  #1

I remember seeing a thread that contains a collection of exploded views for bodies and lenses, but I couldn't find it.

My 24-105 is broken. Long story short, I tripped and the lens was detached from the lens mount. Got a few scratches on the battery grip, a few nicks on the body and destroyed the eyecup. The rear lens element doesn't appeared to be scratched despite the lens tumbled down about 20 feet forward to my right.

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It looks like the ribbon that connects to the lens circuit board needs to be soldered. There are a couple holes on the lens mount at the lens' end are damaged. One strip of "ribbon" also appeared to be damaged. I got the zoom right tightened a few months ago and I think my warranty expired too. Do you guys think it can be an expensive repair?

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Mastamarek
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Sep 04, 2010 05:40 |  #2

why did I click on this thread. I can't look at pics like this.


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canon_fire
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Sep 04, 2010 05:43 |  #3

Send it in! Will prob' need a recalibration as well.... Cost .. idk..




  
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noogle88
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Sep 04, 2010 06:17 |  #4
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You're not going to get away fixing this cheap at home. Prepare to spend a lot of money for your mistake. Next time don't trip, pay attention.




  
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hpulley
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Sep 04, 2010 06:47 |  #5

$200-300, could be more depending on what happens when they check it out. Best to send it in, it will likely be a set of toy magnifying glasses soon if you try to fix it on your own.


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TaDa
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Sep 04, 2010 06:52 |  #6

The lens is designed to break away from the mount exactly where yours did. Send it into Canon and see what the charge will be for a fix, but others have sent in their lenses in the exact same situation and gotten them back and repaired.


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slr_noob
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Sep 05, 2010 00:51 |  #7

I would like to know if there's a particular reason why the lens is designed to break away there in case something happens.


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-580EX II
-24-105 f/4L IS USM (Now fixed!)

  
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Rekd
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Sep 05, 2010 01:03 |  #8

slr_noob wrote in post #10852306 (external link)
I would like to know if there's a particular reason why the lens is designed to break away there in case something happens.

Prolly so you can get away with only paying a few hundred for your ****up instead of having to buy a whole new lens. :cool:


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dmo580
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Sep 05, 2010 01:04 |  #9

slr_noob wrote in post #10852306 (external link)
I would like to know if there's a particular reason why the lens is designed to break away there in case something happens.

i would guess so the lens is free to roll off. the rest of the lens is pretty solid. if it stays attached to the camera, the shape of your camera + lens means something else has to give.

they build the weakpoint at the mount so it can just break off and roll off. the rest of the lens should be ok with maybe some scuffs on the outside, and you're left with a broken mount. that way they can focus repairs on the mount, rather than to say if you have a crack all the way from top to bottom of the lens because you did a face plant on concrete when you fell... basically in mechanical design you design most things knowing where the weak point is. that way you can replace just that part or you know where failure will be during an overload situation.


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Mike ­ Deep
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Sep 05, 2010 01:06 |  #10

slr_noob wrote in post #10852306 (external link)
I would like to know if there's a particular reason why the lens is designed to break away there in case something happens.

Some will argue that it's like crumple zones in a car, sacrifice the mount to absorb energy and save the bulk of the lens and the camera.

Others will argue its just a side effect of using plastics everywhere.


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dmo580
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Sep 05, 2010 01:13 |  #11

Mike Deep wrote in post #10852345 (external link)
Some will argue that it's like crumple zones in a car, sacrifice the mount to absorb energy and save the bulk of the lens and the camera.

Others will argue its just a side effect of using plastics everywhere.

yeah crumple zones.

instead of all the fall energy going into your camera + lens, it goes into a camera + flying lens, and given L lenses are built decently, they should be able to handle some beating even if it means a broken mount.


Canon 7D & Rebel T1i: Tokina 11-16mm f/2.8, Canon 17-55mm f/2.8 IS, Canon 55-250mm IS, Canon 28 f/1.8, Speedlite 580EX II, Speedlite 430EX II

  
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DreDaze
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Sep 05, 2010 01:24 |  #12

is this what you were looking for?
http://www.f20c.com/st​uff/canon/partslist/ (external link)

the 24-105L is not on that list....but it's the only thing like it i've ever seen...


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JelleVerherstraeten
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Sep 05, 2010 04:15 |  #13

I hope it can be repaired. I have this lens, and does hurt seeing it like this...


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richardfox
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Sep 05, 2010 09:44 |  #14

Mastamarek wrote in post #10848251 (external link)
why did I click on this thread. I can't look at pics like this.

It's why people always slow down when they see a wreck! Just can't NOT look!

It's sad watching what was once a "pride and joy of ownership" item reduced to multiple non-working parts. Been there, done that, and have a big box of stuff that's broken or disassembled beacuse "I might actually use that part some day". Just can't bear to toss it away, and yes I have indeed been able to use some parts!

RIP, honorable 24-105...:(


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John_T
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Sep 05, 2010 11:14 |  #15

Likely it will only be one or two pieces of plastic to replace cause the screws got jerked out, stripping the threads with them. Sometimes you can just put them back together if nothing is stripped or cracked, just popped at the impact release point, but in your case, I'd just put all the loose parts in a zip-lock, wrap it all up nicely and send it to Canon in Irvine and it will come back like new.

Yes, all Canon lenses are designed with a pop apart zone to save the rest of the lens if possible. The most frequent damage comes from toppled tripods or a wild swing on the camera strap. I think rolling off a table is the next most popular way to have an exciting experience. The worst, of course, is the compression whack starting at the front element.


Canon : EOS R : 5DIV : 5DS R : 5DIII : 7DII : 40 2.8 : 50 1.4 : 35L : 85L : 100L IS Macro : 135L : 16-35L II : RF-24-105L IS : 70-200L II : 100-400L IS II : 1.4x & 2x TC III : 600EX-RT : 580EX : 430EX : G1XII : Markins Q10 & Q3T : Jobu Gimbal : Manfrotto Underware : etc...

  
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Exploded view for 24-105? My lens is broken
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