Digital BW, The Print

I am surprised there wasn't a more significant upgrade of their optics.  The
top-of-line 1DsMKII is really showing the weaknesses of Canon's L glass. I
said "weakness", not to imply that the glass wasn't good enough for film -
it was - but rather that with high resolution clean digital we need even
better optics.  The new L lens announced was not designed to replace the
extremely popular 24-70 f2.8L.

I have asked on Rob Galbraith's 1DsMKII forums if it is possible to buy an
adaptor to place Contax 645 glass on the 1DsMKII and received no replies.
Anyone here know if this is possible?