Quote Originally Posted by Frank Bunnik View Post
There is some discussion on the internet if it is possible to use the cam of for instance the 5.6 150mm Horseman lens on any 5.6 150mm lens or only on the dedicated 150mm lens. Contrary to Linhof cams that are matched to a particular lens with it's serial number on the cam, Horseman cams are for the focal lenght only.
I have two Horseman cams; one of them has a serial number, the other doesn't.

In any case, they're not cut for a generic lens of that focal length, they're cut for a specific Horseman lens model of that marked focal length. However, you can't assume that the actual focal length matches the marked number, or that another vendor's lens of that nominal focal length will match the actual FL for which the cam was cut.