The mount on the z7 is universal, it just needs an adapter plate in mount. So if the letus relay can work with 1/3 and 1/2 lenses (which I think it will be able to) then if should definetly be possible.
cool, thanks for the info. i ran a search, but came up empty, but would you happen to know if there are any edge to edge issues with the z7's stock lens and the letus extreme?