Hello..recently i acquired a 180mm Carl Zeiss Jena Goerz-Dagor 6.8 lens in an older style dial-set compur shutter. The shutter speeds are all off and so i'm wondering if it would be possible to directly remount this lens in a newer rim-set compur or perhaps a copal 1? I know i could sent it to S.K Grimes and have them remount it. I have used their wonderful services before in the past (and highly recommend them)..i'm going to attach 2 photos of the lens here








Both the front and rear cell threads look like they are 40mm ( i think a copal 1 is 40mm front/36mm rear ). The rear of the compur shutter has an extended or raised threaded rim about 8mm high from the flush back of the shutter.

Does any of this sound familiar to anyone? am i hoping too much to just switch out the old shutter with a newer/new one?