help! stuck lens

My favourite lens, 50mm f1.7 is stuck to my 2x teleconverter! when i try to remove it, it will turn half way and then it just stops (sounds and feels normal until then) any ideas?

I'd love to have a solution for you, but it does sound rather problematic and probably in need of a skilled repair house. If that is the case, I would be looking for another 50mm lens as they are readily available at very low prices. (Even though digital SLR users are beginning to discover that they make very fine 75mm portrait lenses!)

Sorry I can't sound more hopeful this time....

Thanks john, I guess I could always leave them stuck together and have it as a 100 mm portrait lens, it certainly works well as that anyway.
john