Originally posted by kenafein You could try screwing the lens into the adapter first(off camera) and then mounting it.
Quite. Also, on my lenses with tripod rings, the rings can be rotated. I dunno if this is possible with your SuperTak.
Extension... I use a short tube to make a huge Rubinar Makpo 1000/10 mirror lens clear the flash snood, but that's a different kettle of fish. Enough extension on your SuperTak will turn it into a nice macro zoom -- as in, closeups only.
So your only real options AFAIK are to follow
kenafein's suggestion, or try to rotate the ring. Good luck!