Originally Posted by aizan
So if you had a folder with an anastigmat in a Derval shutter, could you swap it for a Heliar in a Compur shutter later if you came across one? Assuming they are the same focal length and for the same film format.
It all depends on the individual camera and lens/shutter assemblies. Most could probably be done, degree of difficulty is the kicker. There's a point after which the effort isn't warranted by the potential results.