Canon Lenses Are FALLING Off 5D MK2 & More (Updated).

PinExt Canon Lenses Are FALLING Off 5D MK2 & More (Updated).

Canon Lenses Falling Off Canon Lenses Are FALLING Off 5D MK2 & More (Updated).

Beware Canon users! Lenses falling off… Spread the word people. It’s not a myth. Via @gavinseim

For original 2009 post scroll down (highlighted in red).

05/21/12: Latest update & 5D MK3 Notes.

More comments keep coming in and the lenses are still falling. This design flaw in the MK2 that allows the lens release button to be ultra sensitive. Be very careful and watch for lenses coming loose. Often you can catch it before it falls if you’re aware of the issue. Some users go for years without it happening. Others deal with on a regular basis.

According to the latest reports, Canon claims they’ve never heard of such a thing, even though many have called in about the issue. It would appear Canon support reps are being directed to lie about the issue.

5D MK III. We’re hoping this issue does not occur with the MK3. In fact I was assured by an executive at Canon who I will leave unnamed, that this WILL NOT happen on the MK3. So far so good but we shall see. In the meantime, keep posting comments and keep hammering Canon until they give is a real fix for this problem on effected bodies like the MK2, some 1D series and the 7D… Gav

09/15/11: When Does Someone Get Hurt?
Canon seems to still be ignoring the issue, but it keeps happening. People keep stumbling on this post and telling of their own lens disasters. But here’s an even more scary tidbit. A Canon lens fell from the sky recently and hit a home, damaging it. It was in Petaluma around Sept 2nd. Seems a Canon lens fell from the air, damaging the roof and slicing thru two window screen. Thankfully no one was injured. More Details on the incident here.

Police and FAA can’t seem to pin it down. Maybe they should read this blog ;) Of course I can’t say for sure what happened, but based on what we’ve seen, it’s not hard to imagine that the lens slipped off during an aerial photo session.  This raises the question. How long till someone really gets hurt because of Canon lack of responsibility in dealing with this flaw? THE LENS RELEASE IS TO SENSITIVE CANON!

Imagine of of these heavy lenses falling on someones head at a wedding or event? Hang on to those lenses folks. And call your Canon rep… Gav

UPDATE 11.20.10: Pro Gear?
This article has brought quite a bit in discussion in the past few days. I want to reiterate that this is not a case of clumsy, stupid photographers. Most of these are the same people that have earlier models with no issues. Did we suddenly get dumber when we bought the effected bodies? I’m not the kind of guy that blames the coffee shop because I spill on myself. If I was simply screwing up, this post would not be here. I myself had a 10D, 20D, and 30D prior to my MK2 and while the release design is very similar, this never occurred.

Some suggest a lack of maintenance or that parts are worn. As you’ll see in my earlier updates, I sent my nearly new MK2 body to Canon for repair and they said their was NOTHING WRONG. The loaner Canon sent me during one such inspection had the same issue as my own. This also seems to be cropping up on more Canon bodies, some new (such as the 7D), some older (such as the 5D MK1). It begs the question. Is the position of the Canon release button in general simply a poor design?

This is equipment used in bustling job situations like weddings and events. Attempting to replicate this as a test offers little help, because in real situations you’re just working, zooming, or holding to that lens to stabilize. You’re not expecting the lens releasing, even though general active use is all it seems to takes It would seem (though we’re not positive) that the button is brushed by the hand in the right way while using the lens and is far too sensitive. It releases. At that point a simple zoom or focus is all it takes to rotate the lens off.

Some, in defense of Canon (such as on the Canon forums), blame users saying that their holding their cameras the wrong way. I think we should consider that this is expensive pro level gear. There is nowhere in the manual that says how we have to hold the camera, nor should there be. The camera needs to be able to position in any manner we need it to.

THERE IS NO WRONG WAY TO HOLD IT. If we are using pro gear in pro situation and it cannot handle the task without coming apart in our hands, that would indicate a poor design that needs to be addressed. Note that while the user prefs of many photographers have so far kept them from experiencing this issue, it does not excuse the problem. It should be noted that this problem has not been reported on ANY OTHER CAMERA BRAND. People should ask themselves. Do I want a camera I have to babysit or do I want a camera I can use in any situation and not have to worry?

If professional gear cannot withstand professional use, then it is poorly designed and needs to be fixed. This is not a life altering problem. It’s just one that Canon needs to man up and deal with, so we don’t have to worry about breaking expensive gear every time we pick up our cameras. Canon should take some pride in the refinement of their engineering and fix this flaw. Nikon seems to have avoided this problem Canon. Why can’t you?

PS. Needless to say. After all this, I doubt I’ll ever get that invite to Canon Explorers of Light that I always dreamed about. Oh well. Life goes on ;)

PSS. I am still unsure if only certain copies of the suspected models are flawed, or if all of them are and it’s just a matter of how some people hold their camera. Time will tell I hope.

UPDATE 11/18/10: Canon Ignores Us.
Lenses keep coming loose and falling off. This thread has over 100 comments now and I wounder how many people have had the problem and not spoke up. Not realized it’s a Canon design flaw. How many have  had their lenses come loose, but have realized it before the pavement smack, twisted it back and just went on.

People keep explaining, keep mentioning this post to Canon, but Canon seems to be pretending it does not exist and tells people THEY dropped their lens. I say it’s time to ramp this up. People are getting mad (me included). Some are thinking of switching. Call your Canon dealer or rep, post to your twitter, facebook, forums. Let your friends know. You can read through the many comments and updates, as well as the original article below for more details. Bottom line. All it seems all it takes is brushing your hand in the right spot while zooming, focusing etc and it’s released.

Andy brought up something in a comment that I have had concerns about as well, but to see it spelled out gave me chills. What happens when a Canon lens falls off from a balcony at an event and lands on a guests head? Not good. I for one am doubly careful when using my lens over an open space.

Some are skeptical, so let me add that this is not a freaked out conspiracy theory. We’re just regular photographers, but with broken lenses. This has NEVER happened on a Nikon that I’ve been able to find. There is no excuse for Canon. It may not be happening to you yet, but be aware and don’t think because you’ve not been hit with the issue, that this cannot effect you next.

UPDATE 08/10/10: Now included on the Canon 7D
It’s been over a year since this post was started. Everyone has not had the problem, but as verified by more continual comments, the issue very real. Many don’t realize how serious it is until it happens to them (which can be at any time). At this point I don’t see how it can be denied that there’s a serious design flaw in some of Canon’s release mechanisms. Shame on your Canon for ignoring this problem. To anyone having this issue, let everyone know. If you get lens damage due to this, don’t just pay up. If you’re a CPS member contact your Canon rep and explain the issue. Ask them to fix the lens under warranty. If you don’t know who your rep is, contact Canon customer service (800-652-2666). Don’t hesitate to direct reps to this post to backup what you’re telling them. The easiest way is with the short link…

It looks like the issue may have also started on the Canon 7D. Apparently canon did not address the problem when they designed the new body. Based on this, I recommend all Canon users be cautious. This keeps happening on more Canon bodies and depending on how you hold your camera you could be next. I don’t plan on a brand switch at this time, but if Canon does not address this issue I’m nearing a point where I may stop recommending their SLR’s. We’ll see how this plays out. In the meantime please share your comments and tell people anytime it happens. You’re not alone… Gav

UPDATE 12/01/09: No Response
Complaints keep trickling in and sadly there’s been no resolution. Not everyone is having the problem, but it’s far too many. Canon has not responded (shame on you Canon). For now all I can suggest to those having the issue is to contact Canon and voice your thoughts. Also keep leaving comments and letting people know about the issue. When shooting these days I’m just very aware of the problem and watch for lenses coming loose, in hopes of avoiding further accidents.

UPDATE 09/09/09: It’s not a problem.
I sent my MK2 body and broken 24-70L lens to Canon. They returned my body stating everything was up to spec and sent a repair quote for the lens which broke when it fell off at my last wedding. My rep got them to repair the lens at no charge. I’m thankful he worked with me, but forced to wounder. Would he have been allowed to help had I been non media related? I don’t know.

The bigger concern I have is that Canon did not acknowledge the problem. What happens the next time a lens falls off in the middle of a shoot. They come loose frequently and usually I catch it before disaster strikes, but not always. Will Canon keep fixing lenses for no charge? I have my doubts .

I use a battery grip, so perhaps my hand is held slightly different? I’m curios if others having the issue are using the grip. I’ve talked to my rep about possible causes and we’ve come up with no answers. The bottom line it that a locked lens can be detached (presumably from a button touch while zooming) and if not caught in time (easy during the heat of an event such as a wedding) it falls off.

This keeps happening, but not to everyone. We’ll see where it goes and I have hopes that Canon will find a solution for those of us dealing with it. Please keep reporting your findings. If you break a lens because of this Contact your Canon rep, see if they’ll take care of it and let us all know how it goes. If I get further info I’ll let you know.

UPDATE 08/26/09: How it might happen.
The release button position falls directly into the thumb path for many of us while zooming (especially on short lenses). Larger lenses are not entirely immune, but seem to have less issues. Perhaps due to more wight (more force to turn loose) and perhaps that the control hand would be further up on the barrel with a large lens and close to the release button on smaller lenses.

More reports keep coming in and I had yet another lens disaster. Last weekend at a wedding, I had multiple lenses come loose including my 17-40 and 24-70, but I was wary and realized it. Then at a later point during heavy shooting, the 24-70 came loose and fell about 6ft to a ceramic floor with a sickening smack. It no longer works properly.

My Canon rep sent me loaner MK2 and 24-70. I’ve not shot with it yet, but from my tests, the lens seems to release every bit as easily as my body I just sent to Canon service, along with my damaged lens. The button is so sensitive that a slight touch will unlatch it. If you don’t realize it, it’s a simple matter to it to turn entirely loose and fall off. Especially since lens mount seems looser than previous models like my 30D. Further experimentation on my 30D shows me that the lens can still come off, but the difference must be enough that it has never been a problem for me or others.

I fear that Canon will say there’s nothing wrong. I can’t tolerate this  and neither should anyone having the problem. Could it be I’ll have to turn to Nikon after using Canon my entire career? I have not heard one such report on Nikon bodies. We’ll see how Canon responds. They have a good track record and hopefully with rise to this and find a solution. I’ll keep you all posted.

UPDATE 06/29/09: It keeps happening.
The lens keeps unlatching, but I’m watching for it and have not had any more falls. With me it happens on the 24-70 L. Other reports keep coming in however. I compared it with my 30D, and it just seems like the release button it hypersensitive, making it easy to turn the lens off while zooming. I spoke with Mike, my Canon rep and he’s going to arrange a loner body so I can send this one in and have them look at whats happening. I’ll report back.

UPDATE 05/31/09: Experimentation..
Doing further experimentation. The lens worked loose twice at Saturdays wedding but did not fall off  as I was watching for it. It seems (especially on the 24-70 2.8 Canon) that it’s VERY easy to Inadvertently hit the release button while zooming. It’s very sensitive and and takes only a slight touch to release the lens allowing it to turn while you zoom. Perhaps the button is more touchy on the MK2 vs other Canon bodies? Or even just certain units in the MK2 model? Will update again soon.

Original Article. 05/18/09. Lenses falling off.

by Gavin Seim: Please share this so we can use the net to get feedback or tips on it. I’ve sent the tweet on my twitter and requested RT’s. You can paste it and do the same if you like. This is a simple way to hear from the world on their experience with this…

Those who listen to the PPS podcast are aware that I recently sent my brand new 24-70 2.8 L lens to Canon for repair because it fell off my 5D MK2. I love my MK2, but I was on the dance floor at a wedding happily shooting away and next thing I know my twelve hundred dollar lens is rolling on the floor. Pretty disconcerting.

There’s was that chilling intake of breath from the crowd, that most of us who have publicly dropped a piece of gear are all to familiar with. Like any pro, I kicked the lens off the dance floor with disdain, while casually saying. “Heck that old thing. I have a whole case of them in the car”. OK seriously though, I kept cool and finished the wedding just fine. If you want to hear about that listen to PPS podcast #58.

Naturally Canon treated the situation as if I’d dropped the lens outright and the the repair cost me about $200. Not a huge deal. I figured perhaps I somehow hit the release button. Then I got to thinking. Should that happen since you we you have to to rotate a lens with some pressure to take it off. Probably most people thought I was being clumsy and did something wrong. I was using the camera quite normally however.

I was about to let it go when I found I’m not the only one this is happening to. Seems that there’s various reports coming in about lenses falling off the MK2. More all the time. So I decided to write this post to talk about this. Does this happen commonly? How about on other cameras besides the MK2. Do Nikon’s ever have this issue?

This is not some conspiracy theory about Canon having a plot to make all our lenses fall off and break, so we’ll buy new ones. (then again… Just kidding) I just want to know. Have you had this problem? I’m concerned that the locking mechanism does NOT always stay locked. These are VERY expensive lenses we photograph with. The risk of the dropping them is bad enough. We don’t need them falling off too.


ad lf slim Canon Lenses Are FALLING Off 5D MK2 & More (Updated).

  • James Phillips

    This to has happened to me using my 1D Mark III I was walking down the street taking photos with my 70-200 2.8is and to my amazement I was trying to catch my lens before it hit the concrete, nothing doing there I watch it bouncing like a ball on the concrete. I picked it up examined it and noticed the ring it mounts to on the camera was crushed so there you go a real sick feeling.Always have checked to make sure my lens locked into place and chalked it up to user error but I was always left wondering how could i had hit the button to release the lens if that did happen. This incident cost me 295.00 to have my lens repaired.

  • Simon Jones

    Well, I stand down and have to admit to ALMOST losing a 70-200 f2.8 IS MkII this week! After a few hours of landscape shooting I lifted my 5d MkII to take a shot and found there was a zero reading in the aperture readout, I gave the lens a twist to check the contacts were good and guess what… the lens was already loosened off by about an eighth of a turn, it turned back and clicked into place!
    I’ve already replaced the CF carrier and shutter mechanism in a 20D so I guess it should be a piece of cake to tear down the 5D MkII and put a stronger spring under the lens release button!

  • Toby

    opposite problem – my lens is stuck on!

    put the 70-200 on my 5dMk!! and it was quite stiff – totally out of the blue. put my 24-105 back on after – v stiff – now wont remove at all. of course i’m just days out of warranty… the release button seems to work fine

  • Kyoshi

    I believe it because I’ve witnessed it twice. Once at a zoo in washington state and the second time by a pro shooting a wedding. The latter was glad he had insurance!

  • Peter Finnie

    Had a 70-200 detach from the body of my 5DMKII this weekend.
    Was shooting with it with no problems. Handed it to assistant who started walking down the hall, next I hear is a crash and I see the lens cap and a pile of glass shooting across the T intersection of the hallway.
    UV filter mounting thread area bent and compressed deep into the front lens element mount.
    Could not remove destroyed filter ring.

    Lens simply let go. Looking at $1000 to repair according to Canon Cda.

    Not impressed to say the least!

  • Nancy Cuppy

    It cost me close to $326.48 to have my lens repaired. I sent a letter with what happened, they pretty much ignored it. This is what the service details stated. Your product has been examined and it was found that the part was broken. The focus adjustment ring, lens mount were replaced and product functions were confirmed. Other electrical adjustments inspection and cleaning and mechanical adjustments were carried out.

    I used the lens twice, since I got it back, last week I took it out in low light and it was hunting for focus, and it was squeaking like crazy. A squeaky grinding sound. I use to be so smoot and fast. Not anymore. I just feel the focus is off, takes longer to focus. I emailed canon cps and once again my lens goes in and they want my credit card number. Sigh….

    My camera was $212.00 as I sent that along and the Service Details were as follows:
    Your product has been examined and it was found that the product performed according to specifications. Electrical adjustments were carried out and the AF assembly and product functions were confirmed. Other inspections and cleaning were carried out.

  • Fiona

    Thank god I’m not going mad.

    I was walking through Tokyo, taking photos quite happily, when my F stop reading stopped at ’00’. I turned my camera around to look at the screen when the lens went crashing to the ground.

    What a horrible sound. Made me sick to the stomach.

    The mounting thread is now damaged and it won’t re-thread back onto the camera.

    I have taken 1000 photos in a day for weddings and other events and have never had anything like this happen, so I should have the confidence to walk around with my very expensive camera without cradling the lens in case it pops off.

    I’m currently trying to figure it out with Canon, which is difficult since I’m in transit. It’s not much fun since this trip was intended to expand my portfolio and I can’t use my main lens.

    Thanks to everyone for sharing their stories. I’ll be using your experiences to negotiate a resolution.

  • Jenna Young

    aaaaarrgh this keeps happening to me too. with my 5DMK2 and 24-70L (both 6 months old). Its happened about 5 times.. each time I have caught it with my lightening fast reflexes.. I’m a little bit special so i thought perhaps it is me so have been taken extra extra care when mounting AND shooting and its still happening.

    I only have to slightly touch the lens release button for the lens to be able to wiggle loose, I’m meaning the slightest touch… its sooo loose that im sure even if the wind was blowing hard it could push the button and if i twisted the camera… down she would go.

    I have contacted canon, of course they are more than happy to take my $ and have a look at it, but there is a 8 week wait to get my camera back (im in rural New Zealand).. which isnt really practical mid wedding season.

    Does anyone have some good ideas on how to rig up something to attach the lens to the camera in case I dont catch it.

    And thanks so much for posting this Gavin, I now feel confident that I am not totally retarded… needless to say tomorrow I will be getting my B*&ch on and ringing canon.

  • Nancy Cuppy

    Canon will say, sorry you dropped your lens, that is not covered under our warranty. They refused to even discuss it with me. I really feel Canon has some very real quality control issues. They have had to fess up before, the mirrors falling off the 5Dand some problems with the 1D’s. If I did not have so much invested in Canon I would switch to Nikon in a minute.

  • Courtney

    Ugh! I had never heard of a lens just falling off, but it happened to me last night. My 70-200mm just fell off new 5D mark II. Luckily, my lens but didn’t break, but now it has a big dent in it and its only 2 months old!!! I used the camera all day with no problems, it was not in use at the time, but was around my neck hanging. I was stunned and shocked when it just fell off my camera and so were all the people who witnessed this weird happening. I’m now worried about using my camera and lenses! Does anybody have any suggestions.

  • Stu

    Happened to me.

    5dMk2 + 24-70mm f2.8.

    Strolling down the Yangtze river, China, when all of a sudden the 24-70 falls off. Luckily, and I mean really luckily, I manage to catch the lens in my left hand before it hit the concrete.

    I thought it was my fault for not attaching the lens correctly, but I am normally REALLY diligent and always slightly twist in the opposite direction to ensure the lock is activated.

    This thread leads me to believe it may not 100% be my fault… :(

  • Mo

    Found this thread googling for help getting my filter off my 24-105 after it fell off my camera over the weekend. I am pleased to see that I am not the only one whose 5D mkII constantly releases my lens. Usually I have my hand on it and feel it go or get an error message letting me know that it’s not on. This time, however, I was working with a cinematographer who I was helping out, shooting establishing shots around New York for his film. I always thought it must just be my boney thumb and forefinger grazing the release button while zooming and thereby accidentally releasing it and twisting at the same time…. but now, we both stood there in shock as he prepared his shot, let go of the lens and it plummeted to the ground, shattering the U/V filter. Heart attack city. It seems to be okay except that the filter is flattened on one side so I cannot get it off.

    Ridiculou placement of the release button — it’s exactly where your hand goes to zoom.

  • Brian Connolly

    I witnessed this happening to a friend of mine twice this week. There does appear to be an ergonomic issue with the placement of the release button. To reproduce the issue, do the following:

    1) Load a large (heavy) lense onto your 5D M2.
    2) Hold the camera with both hands, but make your left hand grip (which is presumably grasping the lense) close enough to you so that it is also rubbing against the camera body.
    3) Still holding the lens closest to the camera body, move your left hand like you are adjusting your zoom.

    Notice how easy it is for the side of your index finger to bump the release button. This is especially effective if you happen to be twisting in the direction that your lens dismounts. I have been able to reproduce this issue with a single motion. An easy motion to do on accident, and the result can be VERY expensive.

    So.. I have been taught to always try to provide at least a suggested solution when pointing out a problem..:

    Since the issue appears to be that the button is easy to push while twisting.. make it not easy. Meaning, it may be possible to fabricate some sort of guard to go around the button to prevent contact. Something like a really thick piece of neoprene. Something that would allow a finger to still press the button, when it was on purpose.

  • Thomas martins

    Hi, i have my 5d mkii one year now and i’ve had that problem, however, i have another serious problem and i don’t understand, if you could help me…

    Normaly in wedding we do the peopple photograps with the Grooms and then we take a close picture of each person in portrait (cuting from shoulders), the problem is, the flash (580 exii) fires to strong and expose to much the peopple faces. I have tried in manual and P like full automatic and still doing that, it’s not my first 5d mkii doing that, the first one i send it to canon and they change the sensor but the problem remains.
    I don’t know what to do, i already think in go to nikon…

    Do you thing you can help me?
    My e-mail

    Sorry the bad english.

  • Kacey Arnold

    Well, just one more to add to your list of people it’s happened to. I only have one zoom, which is my 70-200mm 2.8L II- I’ve had it fall into my hand at least 5 times. I watch more for it now, so it hasn’t happened recently, but it sure scared me when it did. I thought I maybe just didn’t lock it, until it happened the 2nd-3rd times, now I just assume I’m brushing the release button and the weight of the lens+zooming is popping it off. It’s a sad design, perhaps just a higher mount sitting on top of the release to cover the button from a downward swipe would prevent this? Leaving a small overhang over the release button so you actually have to push the button instead of just slide against it. I’ll be devastated if I ever drop my 70-200 because of this. Now that I know it is a common problem, I’ll be sure to educate my husband on how to cradle the bottom of the lens when shooting and how to hold it while walking so as not to let it slip off (as it has fallen off twice while not photographing, just walking with it in hand, but since I hold that particular lens by the lens itself while walking – with the tripod mount turned upwards and using it as a handle – it just pops off while still in my hand) and it’s a good motivation to go and get insurance on all of my professional gear before something tragic happens.

  • Simon Jones

    I think I know what the problem is here, its not that the lens release button gets pressed too easily… its because the lens/camera mounting flange has been manufactured too loosely. Try gripping your lens and turning it left and right, its really, REALLY sloppy compared to the same lens on any other Canon body.
    On the 5d MkII it is so loose, if you press the release button briefly on the body the lens can turn in the mounting flange enough to start releasing itself from the body VERY easily. On other Canon bodies you have to press the button and FIRMLY grip the lens to twist it off the flange because it is pretty stiff. So, why have Canon decided to use different engineering tolerances on the 5D MkII than all their other cameras?
    The Canon battery grip for the 5D MkII is just as bad, it doesn’t matter how tight you screw it on, it wobbles sooo much its useless if you fit it on to a tripod!

  • Juan Lacruz

    My EOS 1D Mark IV body suffers exactly the same problem, the lens dettaches itself from the body unexpectedly.
    I was hiking with the EOS 1D Mark IV and an EF 500mm F4, the set was carried with a shoulder strap hanging the objective, suddenly the camera became lose and went into the ground. Now CANON does not accept this has been caused by a design flaw and they don’t want to assume on the warranty any verification adjustment needed.
    An official claim has been raised and we’ll see the results, at the moment I’m carrying the body+lens with two straps one for each.

  • Larry Green

    My EF 50mm 1.4 fell off my 50d last year at a wedding, and broke one of the lenses. I assumed that I had not put it on properly. I sent it in and it only cost me $95 to fix. I figured that I got off easy. (I’m glad it wasn’t my 70-200 IS II USM!) I now try to be aware of both camera and lens, but it’s hard to be thinking about taking pictures and lenses falling off all the time.

  • Kris Hansen

    I just don’t see how this is possible AT ALL. I’ve got a 7D, and a variety of L series Canon lenses, and some Sigma lenses. I’ve NEVER had a lens just “fall off” of a body. In fact, in order to remove the lens I have to push firmly on the release button, and while holding it in, turn the lens. if I merely push the release button, it just springs back into place, and the lens stays locked.

    This has to be user error.

    • Gavin Seim

      Kris telling all these people the reasons their lenses all came off in the same fashion was just because they’re too stupid to use their cameras properly is a little ridiculous and insulting don’t you think. It’s not user error, it’s poor design. But we’re used to this. Most people roll their eyes at it until it happens to them. I understand your skepticism, but you’re mistaken.

  • Ann Brokelman

    I own a Canon 7D and my 400 mm lens has fallen off 3 times in the last two weeks. I am not stupid or clumsy some thing is wrong with my lens or camera.
    I never take off my 400mm lens. It is the only one I use.

    Love to hear if anyone has had a problem like this.

  • Juan Lacruz

    My official claim ( has been rejected, Canon doesn’t recognize any manufacturing defect in this camera model, for Canon the camera is perfect and no issue may arise in the field, full stop. So I brought my Canon EOS 1D Mark IV to one good photo outlet to send it for revision, they have put side by side with another Mark IV and it was quite evident that the locking axe was portruding at least 1mm more in their copy than in mine, and that the force needed to get it down was much more in their copy than in mine. This may well be a common problem present in all the camera bodies here discussed.


    • Gavin Seim

      Sorry they did not help you, but no surprise. Interesting on the locking piece. I wounder why they’re inconstant. Canon really needs to get with it and fix this problem once and for all.

  • Richard Herbert

    I have had one worse, I had my 1D mkIII fall off my 300 f2.8 and land hard on pavement because of this issue. I was crossing a street to photograph some friends surfing on 25′ waves when I took my hand out of the hand grip to grab something. next thing I know, my body was flying into oncoming traffic I was lucky. It missed going under the front tire of a 4×4 by just a few feet but it got pretty dinged up and I suspect that the frame is now warped.

  • Yvonne Moss

    Shooting with 7D tonight I was at a concert, sitting in the balcony with my 700 – 200 1.8 when it just fell from the body into the crowded sold out show below. Thankfully someone looked up. In that moment, I don’t know if I had a voice to yell with. The music was too loud anyway. My lens crashed to the music hall floor. In this moment, after just arriving home from NYC, I am grateful that it didn’t seriously injure or kill someone. And that I didn’t have to face an 911 call, or have the show stop due to a horrifying death. I shot video and stills throughout the evening with no problem. I heard the lock catch as I attached that lens before music started to make SURE it was secure. I’m still stunned and feel horrible. The husband of a pregnant woman handed me my lens back, telling me I ruined their night will stay with me. I hope he can see that it could have been so much worse. I don’t think a 3rd story balcony mixed with the size of the 70 – 200 and people below is a good mix when this lens detached.

  • Yvonne Moss

    Adding to the other part of my post, I shot plenty of video and photos prior to this happening. So it couldn’t have been a result of not attaching properly. I fingers must have hit the release button while shooting in the dark club and it just fell away from the body.
    Side note.. I’m a bit traumatized and have a typo. It’s obviously a 70 – 200 lens.

    • Gavin Seim

      Scary Yvonne. Glad no one was hurt. It just reiterates how unprofessional it is that Canon is ignoring this issue. It can happen so easily. Keep spreading the word and warning people. The more that know the more can be aware and maybe Canon will step up… Gav

  • Simon SGL

    After some research and comparisons I am sure I can see now what the problem is. After checking my 5D MkII and several others in my local camera club, it seems all 5DMkII’s suffer from the same design flaw… and it’s NOT the lens release button. It’s the lens mounting flange on the camera body. You will find that on the 5D MkII the lens-to-camera fit is unacceptably sloppy and loose, in fact if you have a heavy long lens like the 70-20 f2.8 IS fitted, you can actually feel and hear it rattling around on the camera body as you walk along. All my lenses feel very loose on my 5D MkII… the 70-200 mentioned, the 24-70 f2.8 L, 17-40 f4 L and the x2 Extender MkII.
    All of these lenses are a tight fit on my two 20D’s but not on the 5D MkII. I also tried my lenses on many other Canon models at the camera club and they all feel tight and stiff to turn into the camera lens flange.
    This is my theory, I suspect that as you walk around with the camera dangling on a strap, the lens release button probably gets accidentally depressed for a split second dozens of times without you knowing it, but this does not cause a problem for other bodies because the lens is such a tight fit it doesn’t move. But on the 5D MkII…. it only takes one of those split second accidental button presses to happen at the same time as the lens rubs against your side andn the lens might turn… just a little bit… maybe just 1-degree… and from that moment on, your lens is no longer securely latched. You will not know this has happened until the lens turns a bit more and a bit more again and then falls off! In my case it came off in my hand so no harm done.
    This is not a “wear” problem, my lenses have always been a loose fit on my 5D MkII.

    • Gavin Seim

      Thanks for the info Simon. Very interesting. I’ have not looked at the ring that closely. Until a larger voice is heard I’m still not sure Canon will do anything about it, but it’s good info. Though this has also happened on the 7D and others. I wounder if they are just releasing camera after camera with sloppy quality control on the mount. I’ll have to take a closer look at mine and we’ll see where this goes.

      Thanks… G

  • Simon Jones

    Hi Gavin, further to that last post, I experimented a little. I held the 5D Mkii with a 70-200 f2.8 IS and bumped the lens tripod mounting bracket GENTLY against the side of my leg (as it would if hanging on a strap). I VERY briefly pressed the lens locking button several times while doing this and EVERY time the lens became unlatched! From then on, all it would have needed was for the lens to turn a little and… bang!
    I am convinced this is the problem.
    When the 5D Mkiii comes out I will be checking the tightness of the lens fit, if it’s nice and tight like on my 20D’s I’ll probably buy one, but if it’s loose like my Mkii… Canon can keep it, I’ll be thinking of switching to Nikon.
    Canon really are getting sloppy with quality control… have you noticed how loose and sloppy the fit between the 5D Mkii and the BG-E6 battery grip is? It’s so bad that it’s useless on a tripod!
    In fact, I’m beginning to get hacked off with my 5D Mkii now:

    1. Weatherproofing? That’s a joke
    2. Shutter release button.. spongey with no feel or feedback… press…press some more… and a bit more… keep pressing more and more and finally the shutter goes off!
    3. Lenses falling off
    4. Sloppy battery grip mounting
    5. Focusing?… my 20D is quicker
    6. Shutter sound and feel… like a clacky plastic toy compared to the smooth “snick” sound of the 20D
    7. Surprisingly plasticy feel to the body considering its supposed to be Magnesium Alloy.


    • Gavin Seim

      Thanks for the update Simon. Canon certainly has some issues to work on and it’s high time they get with the program.

  • Dafydd Hughes

    Has happened to me three times. Luckily I spotted the lens coming loose before it fell off.



  • Tim McManus

    My 70-200 IS USM II just went crashing down last night. It’s the third time (this and my 24-70) a lens has detached, but the first time I haven’t caught it (literally). I decided to search “5D lens falls off” and found out that it’s not 100% that I’m a moron (well, at least not in this instance). Time to start researching more

  • Bob Greenup

    Hi Gavin
    I bought an as new 5D mark II last Thursday (verified at 13000 shots) and went out for a shoot with my 70-200 f2.8L lens attached. My lens strap was attached to the lens mount to avoid strain on the body.

    Walked 10 meters from the car and the body fell off the lens and bounced along the concrete, seriously damaging my newly acquired pristine body!

    In 40 years of handling SLRs I’ve never experienced a lens disconnect – now it’s back at Canon trying to get the damage repaired, it I was horrified to find this thread, after being advised by a Nikon user about this issue with Canon gear.

    I’ve been using Canon bodies and lenses for 5 years – 30D, 40D, 7D, and now the 5D. I have around 15 lenses, all expensive, quality models. If this is a design fault I will be moving over to Nikon. I’m not prepared to walk around worried every time I put a $2000 bit of gear on the end!

    Disgraceful issue to have to tolerate in professional gear.

    • Gavin Seim

      Agreed Bob. It’s not a fun experience to have and one many of us have dealt with. It is indeed a disgrace on behalf of Canon. Hope the damage was not too extensive… Gav

  • Judy Larson

    I googled “lens fell off Canon 5D, Mark II camera” and found your article and this news feed. So, I know I’m not alone, and I have earned the right to belong to this club.

    All kidding aside, both my 24×70 and 70×200 lenses have disconnect from my Canon at least 8 times over the course of the last year and a half. Each time I caught the lens and being in the middle of a photo shoot, I’d just think “geez, lucky the lens didn’t hit the ground. I must have done something to cause it to disengage.”

    However, I’m a very careful photographer who respects her equipment and checks 2 and 3 x to make sure the lens is fully locked and I’ve been rechecking several times during a photo shoot. The unthinkable happened to me last Saturday night when I was taking prom pictures and my Canon 24-70 lens popped off the camera and crashed to the ground, bouncing twice on the sidewalk.

    Yikes! The lens glass didn’t break but the zoom doesn’t work. I have an extended Mack warranty for the camera and nothing for the lens. I talked to a Canon rep and he claims to have never heard of this problem, and went on to tell me how the pin lock works and that it is impossible for a locked lens to unlock itself.

    Has anyone had a reasonably good outcome like Canon replacing the camera or the lens or at least repairing both. I’m afraid if I send the camera in there won’t find a problem and I’ll be charged for the lens repair.

    Thanks for listening. Wish me luck!

  • Triky

    No…we are not alone, I had the experience as well!! Last Sunday 7 AM I was going to take some pictures to my local nature reserve, I said I was going because I did not arrive!!
    It was my first day with Blackrapid strap, which I think is very good, but I had my worries too…and they came true. Even though it was nothing to do for what happen, it could have been different if I had the old one as I would have been holding camera and lenses at some point before leave them hanging in my neck.

    That morning I got the camera out of the car….put the strap crossed in my body (it was attached to Canon 100-400)…next I saw the Canon 5D MKII (body only) flying I could not believe it….it was slow motion….I tried to stop it with my feet…which I am not sure was good idea…but I did! The camera ended rolling on concrete, the fall was from a meter more or less…nothing good could come out of this! I picked it up start to clean…first seconds I could not see anything wrong….but then I saw a big crack on the top near the flash connection…I wanted to die!!

    My home insurance is going to pay to repair it, but I would like a new one.. Today the company who will repair it sent the quote. Top part and the mirror box £400. Can be more if they find further problems….
    Is not the first time that that happen, but the unlucky one! It is far to easy to press the lens release when you hold the camera. I have not tried to contact Canon, sure they won’t care but I am very annoyed about this.

    Thanks for reading….I wish luck to Judy and everyone that has Canon cameras!! (Canon 100-400 got detached from my 50D as well…but was my lucky day and did not fall!)

  • Caroline

    Glad to find this post. I guess I’m lucky. I’ve noticed the loose lens before it has fallen off. But all of my lenses are doing this on my 5D Mark II and it’s driving me crazy. I’m sorry to hear that Canon isn’t reacting to this.

  • Simon Jones

    Well eventually it’s happened to me. I was on the phone to Canon UK today discussing the fact that my lovely 70-200 f2.8 IS Mkii fell off the camera and is now seriously damaged. Their response?… “we’ve had no reports of this ever happening before”..!!
    I was walking along the coastal path and all of a sudden the lens felt “rattly” against my side, I lifted the camera to check the lens was mounted properly… and it fell off onto a concrete path. The zoom ring no longer works and the lens is all blurry. There is also a big dent in the body near the mount.

    See my post a little further back which explains what causes this problem to happen.

    The camera mounting flange is clearly too loose a fit. All my lenses are loose on the 5D Mkii but NOT on any of my other cameras, so the problem definately lies with the 5D Mkii body.

    My camera and lens are going to Canon for inspection.


    • Gavin Seim

      Sad to hear. They are lying. They have heard of it from many and they know it’s happening.

      I’m guessing if you send it back they’ll say it’s fine. Since the problem is with the design of the camera and they so far refuse to be honest enough to admit to that problem.

      Good luck… G

  • Matt Reid

    I’ve been a Nikon user for years and suffered the brunt of many a Canon users jokes and remarks. But this isn’t the first major design fault with Canon I have heard about. Wasn’t there a back focusing issue the 1d mark2 as well? Not good from a company that is supposed to be the “industry standard”.

    • Gavin Seim

      Touche Matt. Canon keeps messing up. Again and again. They usually get it fixed eventually. But at this rate they will lose that reputation of industry standard. I think the Nikon mount is much more brilliant. If for no other reason that old lenses still fit… G

  • Bob Baker

    The same thing happened to me. My 70 – 200 f2.8 fell off my lens seconds after I took a series of still shots. I initially thought it was my mistake until it happened again with my 24- 105 f4 about a month later. I took it to my 5 month old 5D mk II body and two damaged lenses to the dealer I bought it from. They were sympathetic to the damage but said they have never heard of Canon covering impact damage regardless of how it occurred. All three items were sent to Canon Canada for repair. 5 weeks later and no resolution in sight. We have dealt with 5 separate reps and they have all said they have never heard of this happening. Their service department tested the camera and it is “within normal operating parameters”. Before we sent it in the dealer and I compared the springs and release mechanism to a used body in the shop and it appeared that my 5D mkII’s springs and release button were not as rigid as the other 5D mk II on their shelf. I am waiting for a supervisor from Canon Canada to get back to me as I have asked for my claim to be escalated so I can challenge the technicians findings. I doubt if this will be resolved anytime soon. Anyone else have any suggestions on how I should be dealing with Canon?….Bob

    • Gavin Seim

      Good luck Bob. There’s more and more keep coming in. You could print out every case from here and send them a book. It really galls me that they pretend they’ve never seen it.

  • Bruce Hart

    my canon 70-200f2.8L fell off into a bunch of cinder rocks while was shooting yesterday because of this problem with my 5D MK II. it shouldn’t be that easy to get the lens to release.

  • Anthony Tran

    My 70-200 2.8L glass fell off today. I kept thinking it was my fault until a fellow photographer direct me to this site. This is ridiculous! Canon needs to take action to get this fix like they did with the mirror recall on the 5D classic.

  • Joey

    This just happened to me.
    I was shooting an event and it just fell off as I was in the hustle and bustle of the moment.
    The lens wouldn’t re-attach.
    I was fucked.
    This is dangerous, and risky.
    I am planning on sending in the lens ASAP and hoping they don’t charge an arm and a leg to fix it.
    I am appaulled at this.

  • Joey

    By the way… It was off of a 5D Mark III and was a 24-70 lens.

  • Andrew Murphy

    November 2010 was my last rant about the lens falling off issue.
    Further to the accidental pushing of the release button issue. My 100/400 lens has a rigid carrying handle attached to the tripod mount on the lens . The handle completely covers the release button when fitted to the camera making accidental contact imposable.
    After I picked up my camera from Canon Thailand 2 years ago I have had NO FURTHER issues, strange coincident if there was nothing wrong before, I thought.
    I see from the columns written Canon still claim they have not heard of this problem. Well they have, I sent them a letter warning them I would be taking civil action if I had another incident and if there was an injury incurred by a falling lens that they would now be unable to deny any knowledge of the issue.
    I find it amazing that 2 years later the lenses are still falling off, poor show by canon.
    I have yet to hear of any other manufacturer having the same fault.

  • Annalee

    My 24-105L lens fell off my 5DM2 in March 2012 at a wedding. I thought it was just me but sort of relieved I’m not! Thankfully the lens hood was on so the lens didn’t shatter, only the UV filter that was on it. The ring is a little bent so it’s hard to put another filter on. There is now a noticeable noise when the lens focuses so I need to get it checked out.

  • Sheri J

    Someone shared your link with me after I inquired about if this has happened to anyone else and also asking if there are ways to prevent this from happening. I was at a wedding a few days ago and my new 70-200 lens magically came off my 5dii, at first I just noticed my f stop setting showing 0.0 and I knew something was wrong, in attempt to hopefully fix the issue I was going to remove and replace both the battery and the CF card and when I went to turn the body over to do so, the lens just came off the camera body and luckily I had my hand on it so it didn’t fall, but it was quite scary to me that I could have had it fall to the ground.

  • Kevin

    I’ve been visiting France for the past 5 days and just had my Canon 70-200 2.8 fall off of my 5D Mark 2. I carry 2 5D bodies so I don’t have to change lenses. I had been shooting as usual when I noticed the auto focus wasn’t working. When I lowered the camera to check if the auto focus switch had somehow been changed to manual, the lens plummeted to the concrete. A good way to ruin a vacation.

  • Kevin

    As an update, I happen to live about 5 minutes from the Canon service center in Irvine, Ca. I took my camera and damaged lens in and explained what happened and, once again, they denied they had ever heard of this problem and refused to accept any responsibility. Perhaps it’s time for a more organized approach and possibly a class action suit to get their attention.

    • Gavin Seim

      It’s very frustrating. I not sure a lawsuit would work here, but Canon’s behavior on this issue is inexcusable. Maybe a legal expert can weigh in.

  • Simon

    Well I finally got my 70-200 sorted. My insurance replaced it within a week of sending it in for inspection. I couldn’t bring myself to send it to Canon and be without it for months only to be told they wont repair it.

    I have an idea… if anyone else here experiences Canon’s “we haven’t heard of this before” crap, just let me know and I’ll be more than happy to give them my case number and they can go back to Canon and say “ok, so what do you call this then?”

    Lets see what they have to say then!

    • Gavin Seim

      Good idea. In fact is people start emailing me case numbers with a couple notes I’ll start adding them to the main body of the article.

  • Mike Garrard

    I had this with the 24-70 2.8, moved onto 5D3’s eventually, no issue there.

  • Andrew Murphy

    Not a lens falling off but yet another lens/camera failure. I listed some of my many camera and lens faults before so this is just a repeat, the lens is not communicating with the camera.
    Last time that happened Canon replace the auto Iris and told me this is considered a service part that wears out normally ?? Well I cant see what’s normal with it wearing out after a couple of thousand pictures? I would expect tens of thousands of pictures from a lens.
    Something always goes wrong when I’m away or just leaving- this time I’m off to Africa in 48 hours that won’t leave long to have it fixed.
    After all the trouble I’ve had with Canon I’ve reached the end. An unreliable camera is as useful as a chocolate tea pot, I’m done with Canon. Once I get my lens or camera (which ever) fixed I’m off to sell it and it’s equipment and buy a Nikon. I really had good results from my 5Dmk2 but it’s no use if it won’t work reliably.
    Guess I’ll just have to re learn using a Nikon.

  • Sarah

    Just had the same thing happen with my 24-70 f2.8 L lens this weekend! I was using a Canon 60d though.

    Any other 60d users had this problem? I had 2 cameras with me so no lens change had been made and I had been using the camera and 24-70 lens for an hour prior to it falling off.

    I hold my camera with my left hand under the body, rather than around the side, I’ve been over the situation so many times in my head and I just can’t see how I could have caught the lens release button.

  • Michael Girman

    I just dropped my $2000 24-105 into the Seine. Just separated from my 5D mkIII, fell 30 feet onto the concrete and rolled into the river. It came off twice before in my hand. The release button is way to sensitive.

  • Dave Greaves

    I have never had this problem, although I did drop my MK1 onto tarmac after getting out of a mini bus having thought that it was still attached to my black rapid straps. Big bang hit the floor long drive home after a hard day in the office.