Can someone tell me how to get reasonable values for CFZ for a DSLR lens? I'm using a stepper motor with a belt and the OpenAstroTech driver runs the focus commands (if that helps)

Obviously, you won't see any travel path in the lens... or what else I can do with the new options in 3.6.5?

And actually, do I even need them? Or are they just used to fill out the Mechanics tab?

Thanks in advance, Anjo