I need help with a FD extension tube!
 

Hi all,

I need help from someone who knows about FD Mounts. I bought a FD extension tube to use its mount with my adapter. I unscrewed the mount and everything was ok, till a couple of days ago. I was fooling around with the mount and the rest of the tube. I mounted the back of the tube in the mount, something made "click", the mount turned about 180º by itself and I haven't been able to unmount it since then. I guess some internal part is locked. Now I wish I never had done it. It's the only mount I have.

Any ideas??

Edit: never mind, I thought you meant the mount on a lens, not a mount and extension tube.

If nobody knows... Does anyone know where I can find a cheap FD extension tube or something very cheap attached to a FD mount I can unscrew but in Europe? I ordered this one along with some lenses in keh.com and with the whole price it was worth it but now the tube just costs $8 and I have to pay the shipment (about $55) and taxes for imported material (about $60), so I better find something with very low shipping costs in Europe.

Mmm... Those are EF. I need FD.