ecobin Loc: Paoli, PA

Super glue! 😢

gsmith051 Loc: Fairfield Glade, TN

Welcome to the forum. Once the lens is locked in while holding the release button it won’t move. Suggestion, try holding button and locking several times to see if lens is firm. If button is sticking you need to send camera in to Canon otherwise lens wasn’t locked properly.

Mark Sturtevant Loc: Grand Blanc, MI

If it happens again and you feel it is due to a tendency to mis-mount or mis-handle the camera, there are lens locks you can get which add more security to the lens mount. Those are anti-theft devices, but they would help here too. You would not be alone in this, as I have a tendency to leave my lens cap somewhere, or go out without the battery in my camera. All fixable (now).

L Smith

Thanx for all your suggestions...I checked release button...seems to be working...must be held down while turning...maybe I did not fully engage/click when mounting lens...will monitor further use ! Thanx again.

Blair Shaw Jr Loc: Dunnellon,Florida

Silverrails

Also, If I recall correctly, when Lens is mounted properly, to will a "Click" at the end of the Lens rotation, telling me that the lens has been correctly installed.

mwsilvers Loc: Central New Jersey

As others have suggested, it's more then likely that the lens simply was not mounted properly in the first place and all it took was a small turn of the lens to disengage it.

Karl's Bird Photography Loc: Oregon

My Canon 5D4 separated from my lens twice in one day and it cost me about $500 to have the rear screen repaired. With a large telephoto lens (400 or 600) attached to my Black Rapid sling by the lens foot, the camera body was free to fall if it separated. Regardless of how it happened, my solution was to attach a cord from the lens to the camera as a backup. Of course, with the cord attached the lens and camera haven't separated again. I'm using a Sony a7R4 now with the same backup cord attached, even though the release button on the Sony is placed out of the way more than the Canon.

jeep_daddy Loc: Prescott AZ

I did the same thing as you but with different results. My camera body fell completely off and hit the deck of the boat I was boarding. The seas were rough, we were transfering from the Ponga to the Yacht and two fellas were helping us board the yacht. I had a double strap holding two cameras connected to the lens foot of each camera setup. I was holding the cameras by the lens (rather large lenses) and just as I took a step toward the yacht the camera fell off and landed hard on the deck of the yacht. I was off balance and fell backwards a step because of a large swell and then my camera body was sliding on the deck toward me and the edge of the yacht about to go in the ocean. I had to kick it hard enough to keep it from falling in the ocean as I made my second attempt to board the yacht. I was successful the second time and grabbed the camera body.

After close examination I discovered a large crack on the front of the body. I attached it to the lens and took some practice shots and it still worked fine. I was in Ecuador touring the Galapagos Islands, so I couldn't get the camera fixed right away but since it still worked and I had a second body, I kept going until I got home. I took it to Canon and it cost me about $600 to have it fixed. It would have been closer to $800 if I weren't a CPS member which gave me a 30% discount on parts and labor. Now, Canon only gives a 20% discount on the same repairs.

So yes, I've had it happen to me and now I'm very aware of where that button is and to NOT hold the lens with my hand where any party of me touches that button. Huge mistake on my part.

BurghByrd Loc: Pittsburgh

That seems most likely. I'd remove the lens and have a look at both the camera and lens mounting areas for any visual indications of a problem and particulary while pushing the release button in and out. Once you confirm that mechanism working properly I'd then look at the interfacing notch on the lens mount. In both cases looking for indications of wear or damage or possibly crud preventing lockup. If you don't see any wear or damage and the lens clicks into place with no abnormal movement, a little allowing for clearances is normal, I'd chalk it up to not fully engaged for some reason. Best of luck!

GAH1944 Loc: SW Mich.

---is it possible that the lens was not locked into place and the release button did not malfunction ?----I've done that----------------just sayin---good luck

amfoto1 Loc: San Jose, Calif. USA

All I can say is... Don't do that!



I mean, seriously, you are holding the camera and lens wrong or something if you're accidentally pressing the lens release button.

You should hold the camera primarily with your right hand, by its grip on the RH side of the camera.

Your left hand should "cradle" the lens from underneath. Your fingers will be nowhere near the lens release button if you do that.

DON'T grip the camera body with your left hand. That may be why you released the lens, if your fingers were on that button.

DON'T "pinch" the lens from above, as I've seen some people do. Maybe it would be possible to bump the release button doing that, too.... But mostly it just plain looks kinda dumb and "amateurish". (Much like shooting with a lens hood reversed in the storage position on the lens D'oh!)

And, just be aware of the button when handling the camera. For that matter, you have to take some care not to bump other buttons and dials, making changes to settings and/or taking accidental shots. It all becomes pretty second nature, after a while. I shot with a pair of 7D for over five years, took about a quarter million shots with them... got frustrated that the mode dial on the lefthand should was easily bumped while the camera was hanging at my side on a strap (I used gaffer tape to prevent accidental changes... Until Canon offered a dial with a lock upgrade for $100 per camera, for 7D... much like they intro'd on the 80D and all subsequent DSLRs use).

P.S. Just maybe you didn't have the lens fully "clicked" into place.... But usually you'll know right away if you do that. Nothing will work because the lens/camera electronic contacts won't line up correctly. The display on the top of the camera will probably not show lens aperture, because the camera doesn't think any lens is mounted. I've seen this happen to a guy with about $8000 worth of brand new Nikon camera and lens, at a photo shoot I was leading. He couldn't figure out what was wrong... why the camera wouldn't take a shot. Turned out the lens just wasn't fully latched onto the camera. Very, very fortunately, he didn't tilt it in a manner that would cause either the lens or the camera to fall away and bounce off the ground! So it could have been a whole lot worse!

Architect1776 Loc: In my mind

ecurb Loc: Metro Chicago Area

Screw loose behind viewfinder?

Blenheim Orange Loc: Michigan

It takes two hands to release a lens - providing that one of your hands is not being used to hold the camera, as is the case when you are using it. It would take three hands to accidentally release a lens while you are using the camera. Ergo, I think that the lens was not locked in place before the camera was picked up. (I am using Canon cameras, maybe it is possible to accidentally release a lens with other cameras?) I made the mistake once, removing a heavy telephoto lens and replacing it with a 50mm lens. I was so worried about mishandling the heavier lens that I just set the 50 mm lens into the camera and forgot to turn it and lock it. I picked the camera up and the 50mm lens fell out, but I was able to catch it with my left hand before it hit the ground.

Mike