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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 31 Dec 2012 (Monday) 18:54
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Dropped my 24-105L ...

happy with myself for not saying anything stupid
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Jan 01, 2013 10:02 |  #16

i'd try a shot stopped down with a wide scene, just to make sure one side isn't softer than the other

Andre or Dre
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Jan 01, 2013 17:08 |  #17

I think the four things to check are:

- Focus. Does it focus at all distances? Does the AF work? Is the manual focus ring smooth?

- IS. You should be able to see the IS working in the viewfinder (and hear it), but some controlled shooting at a low shutter speed with IS turned on and then off will prove it.

- De-centering - make sure the image is equally sharp on the left and right and top and bottom of the frame.

- Zoom - make sure the zoom works smoothly across the range. Might be worth checking focus at different focal lengths too.

Good luck!

5DII, 50mm 1.4, 17-40L, 85mm 1.8, 24-105L IS, 70-200L f4 IS, 100-400L, 100 f2.8 Macro
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Rubi ­ Jane
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Jan 01, 2013 18:33 |  #18

Sometimes lenses can take a thrashing, other times a small bump will mess it up. I say continue to shoot with it and see if you notice any issues.

I barely bumped my 24-70 a few years back and did some test shots, everything looked OK. When I used it for real world shooting it just didn't seem then same. It seemed like far left of the frame was severely back-focusing. I had other lens choices so it took me a while but when I finally took it to Canon CPS they practically rebuilt the lens except the exterior barrel. Thankfully CPS in Canada flat rate was around $240. The lens is now better than before it was bumped. My 70-200 has been through hell & back, dropped & bumped. I took it to CPS because the tripod ring was stuck, another $240 and they replaced the IS unit, replaced the mount and weather seal.

Hopefully your 24-105 is unscathed - good luck!

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Location: Perth, Australia
Jan 01, 2013 20:59 |  #19

Christina.DazzleByDesi​gn wrote in post #15430589 (external link)
Thanks for the reassurance! Ill do more tests with it later just to be sure but I have a feeling it is fine. And yes Cubdriver - I secretly was relieved that it wasn't the 85L that fell :lol:

I dropped my 85mm L II, it bounced then hit the frame of a sliding door, it now has a nice diagonal crimp in the body.

1Dx, 1DM4, 5DM2, 7D, EOS-M, 8-15L, 17-40L, 24 TSE II, 24-105L, 50L, 85L II, 100L, 135L, 200L f/2.8, 300L f/4, 70-200L II, 70-300L, 400Lf/5.6

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Joined Dec 2010
Location: Chicago, IL
Jan 01, 2013 21:26 |  #20

I dropped my 17-40L on concrete from about 6 feet and all it got was a nick. I think you're probably ok. Do the tests to reassure yourself if need be.

Jon E.
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Location: Westchester County, NY
Jan 01, 2013 22:32 as a reply to  @ Mrslinger85's post |  #21

I dropped my Canon HF M500 video cam. It went down the side of a mountian, bouncing it's way down. At one point I could see the LCD door open. I lost site of it. As I was climbing down, I found it directly on the path (very rocky at that). I picked it up, and removed a number of leaves from it. It had several large scratches, the front lens opening was dented. I turned it on, and to this day (about 4 months ago), it works just fine. I even had it out in the heavy snow the other day, it got soaked. I figure it is a 'feline' type cam and has 7 lives left. :D

just a few of my thoughts...

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Joined Nov 2007
Location: Melbourne, Australia
Jan 01, 2013 22:54 |  #22

It really depends on the bump and the angle it hits it at. Sometimes even a minor bump will dislodge an internal element that requires collimation whereas heavy bumps won't have any noticeable difference

If you can't tell a difference pre and post drop then nothing to worry about :)

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Joined Aug 2012
Location: Bourbon, Indiana
Jan 02, 2013 05:38 |  #23
bannedPermanent ban

I dropped my 135L out of my bag onto a basketball court floor. No harm done. I hope your incident works out the same.

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Location: Raleigh, NC
Jan 02, 2013 05:49 |  #24

jcpoulin wrote in post #15430729 (external link)
Lens' get dropped...they are not as delicate as people think!!! You have tested it....looks fine. Go out and shoot a low light setting with a shutter speed of 1/20 or so.......see if the IS turn on and functions. Dollars are the lens is fine....think of all the news and sports guys who beat up their stuff..

+1 Lenses are not as fragile as people believe. They are built to be used.

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5D3 gripped - 7D2 gripped - 17-40L f/4 - 18-135 f/3.5-5.6 IS STM - 24-70L f/2.8 II - 70-200L f/2.8 IS II - 100-400 L f/4.6-5.6 IS II
135L f/2 - 300L f/2.8 IS - Siggy 15 f/2.8 Fisheye, 100 f/2.8 Macro - TC1.4 II - TC2 III - (2) 600EX-RT - ST-E3-RT

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Dropped my 24-105L ...
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