QUOTE (LeifG @ Dec 21 2005, 08:03 AM)
Canon bodies can use current Zeiss lenses with an adaptor, but Nikon bodies can't due to the increased lens mount to sensor distance.
There are ways to mount Zeiss lenses on Nikon bodies, using kludgy adaptors; I think actual messing with the bayonet claws is involved, and the adaptors are permanently attached to the lens.
Anyway, leaked photos suggest that the real reason is that the Carl Zeiss ZF lenses will be very traditional looking manual focus primes with all mechanical, non-electronic coupling. Canon's EF mount does not have mechanical aperture coupling, so clumsy stop down metering is required.
If so, the target market seems to be traditionalists who previously bought Zeiss branded lenses for Contax 35mm SLR's. Thus it goes with the revival of the Zeiss Ikon rangefinder and release of new ZM lenses in Leica M-mount following the discontinuation of Contax rangefinders.