Originally posted by Bccgojuryu It's a mod that someone put up recently to remove the restrictions of using contax-yashica, minolta, and nikon mounts, though I haven't gotten nikon to work
I would think that in order to get Nikon to work, you would need to have the proper registration distance. In getting Nikon to work, enlarging the registration distance, would have everything else stop working.
Also, as I understand the C/Y mount - which is very close to the Pentax K mount, the flanges are a thicker. I would think that by accommodating the C/Y lens, that may introduce some problems with the mechanical interface with the K lens.
In any event, I find your approach VERY interesting. Have you tried any Contax C/Y zoom lenses? And does both the AE and the MM versions of the C/Y mount work?