More Zeiss Lens Researchwhen did Zeiss Japan start


Well-Known Member
Hi all, again..
Any info welcome. I had always assumed that when the RTS system was introduced in 1974/5 that all the original lens range was produced in Germany..can anyone confirm this? but further reading tells me that Contax had supply problems with lenses for some time and I am wondering If the Zeiss lens facility in Japan came on stream early to help out. Can anyone give definite info on this, or advise when Zeiss Japan first produced lenses? and maybe which lenses?
Cheers to all..