If i have a canon mount samyang 8mm lens (shaved) and i set it up on the nodal ninja r1 panohead, is the following possible?

Can i take this lens/head combination and just attach it with no tweaking to a canon 350D, 5D and 5D mark ii? Or does the lens/head need to be adjusted for each camera?

I own the 350D but can occasionally use the 5D and 5D mark ii through work, that's why i was hoping to be able to use this setup on all 3 cameras.