New to the forum, seems to be very informative to those of you that no what your doing. lol.
I have a photon 4.6 x 42 xt and have a Carl Zeiss Jena DDR MC S 1:3,5 f=135 which came off a Petri TTL camera.
The question is I contacted Griturns for an adapter for the Photon and the say they only have M42 or C mounts does anyone know which of these i need as I was under the impression the Carl Zeiss lens is M42.
Thanks.