HELP - dont laugh

I bought some extension tubes and was delighted at only paying £8-50 for them, now I know why.

They are stuck on my Lens, have tried everything to get them off, so any suggestions would be great.

I know you are going to laugh just be gentle please and I will start

Oh no... Never had something like that happen. Only thing that comes to mind is to try one of those grippers they make to open jars, if you know what I mean - the ones that are like textured soft plastic squares. Maybe that could help you grip it to get it unstuck. But I don't know if it would work or not.

Sounds silly, but just in case. Make sure you are pressing the release button. Hope you get it unstuck soon.

Cre8tivefix wrote: Sounds silly, but just in case. Make sure you are pressing the release button. Hope you get it unstuck soon.

I am aware of the Release button but I thank you for trying I know how easy it is to forget simple little things like that when struggling.

I'll try and explain the technique... here goes. First get a leather belt or something narrow and thin that you can wrap around the shaft of the tubes. The idea is to give you a grip without deforming the tube itself.. Attempt to turn the tube from say the twelve o'clock spot of the tube then try 2:00, 4:00 6:00... One of these spots will help distort the tube back to the place you used when you snugged them on.

If you have the lens off already or can access the top of the tube try this same technique by using as many contact points as possible to distribute the load and use a jar lid remover type material to ease it off without crushing the circlular tube or distorting it...


Finally remember lefty loosy righty tighty... Did a light bulb go off with that last one?

Seriously good luck.

PS... I had a similar problem with my rings. It did turn out to be the lock. It was not a typical button but more of a latch mechanism. Try pushing from the sides or even lifting the thing.

I'd search for someone else who has had similar problems. Other folks have had to buy the same tubes, and tried them on their lenses.

David,there is a small opening on the side of the lens where the lock pin drops into place to secure the lens, adapter, tubes or whatever else is mounted. What you need to do is find a very small screwdriver (miniature, like the type for fixing eyeglasses), insert it into that small slot & try to push the release pin down. When you mount a lens, you'll notice that you hear a click as the pin drops into a groove on the mount face. That groove is what you have to locate. If your lens has an aperture ring, the groove is 1/4 of the diameter of the lens away (counterclockwise if you are looking at the mount end of the lens) from the prongs. It is a very small opening, mind you. I had the occasion to have an adaperter stuck on my DSLR & this is how I managed to remove it...If the lens doesn't have an aperture ring (newer G type lenses), it may be a bit more difficult locating this little slot. This is the only way you are going to be able to remove the tubes without damaging them, the lens or both... Let me know if you are able to free them up...

I found my cheapo tubes. Scott is right about the hole and drop pin. I was right about pushing the button away from the side to lower the lock pin. It is a cheaper mechanism.

David - what happened?

Screamin Scott wrote: David,there is a small opening on the side of the lens where the lock pin drops into place to secure the lens, adapter, tubes or whatever else is mounted. What you need to do is find a very small screwdriver (miniature, like the type for fixing eyeglasses), insert it into that small slot & try to push the release pin down. When you mount a lens, you'll notice that you hear a click as the pin drops into a groove on the mount face. That groove is what you have to locate. If your lens has an aperture ring, the groove is 1/4 of the diameter of the lens away (counterclockwise if you are looking at the mount end of the lens) from the prongs. It is a very small opening, mind you. I had the occasion to have an adaperter stuck on my DSLR & this is how I managed to remove it...If the lens doesn't have an aperture ring (newer G type lenses), it may be a bit more difficult locating this little slot. This is the only way you are going to be able to remove the tubes without damaging them, the lens or both... Let me know if you are able to free them up...

Thanks John, I did just that about an hour ago but used a pin not a small screwdriver, couldnt get straight online as I had visitors (yes there are some folk who like me ) the release pin had jammed in place so once I got it off I sprayed a drop of DW40 into the hole and it is now working perfectly, I also managed to get a piece of tissue into the gap to soak up any exess liquid so it doesnt get into the camera.
Thanks for all the suggestions folks.

photobod wrote:

Screamin Scott wrote: David,there is a small opening on the side of the lens where the lock pin drops into place to secure the lens, adapter, tubes or whatever else is mounted. What you need to do is find a very small screwdriver (miniature, like the type for fixing eyeglasses), insert it into that small slot & try to push the release pin down. When you mount a lens, you'll notice that you hear a click as the pin drops into a groove on the mount face. That groove is what you have to locate. If your lens has an aperture ring, the groove is 1/4 of the diameter of the lens away (counterclockwise if you are looking at the mount end of the lens) from the prongs. It is a very small opening, mind you. I had the occasion to have an adaperter stuck on my DSLR & this is how I managed to remove it...If the lens doesn't have an aperture ring (newer G type lenses), it may be a bit more difficult locating this little slot. This is the only way you are going to be able to remove the tubes without damaging them, the lens or both... Let me know if you are able to free them up...

Thanks John, I did just that about an hour ago but used a pin not a small screwdriver, couldnt get straight online as I had visitors (yes there are some folk who like me ) the release pin had jammed in place so once I got it off I sprayed a drop of DW40 into the hole and it is now working perfectly, I also managed to get a piece of tissue into the gap to soak up any exess liquid so it doesnt get into the camera.
Thanks for all the suggestions folks.

:judge:Good info to have.

Finally remember lefty loosy righty tighty... Did a light bulb go off with that last one?

Actualy Charles I was turning the tubes the wrong way at first but luckily I realised and found they were still stuck anyway, It was Johns way that won the day athough I had already freed them before I read his post, since then I have been testing them with no futher problems, thank god for DW40 the cure all.

Where is "John's" post?

I don't know how you break this to you Scott... You are now John!