Wilt wrote in post #19509806
A chipped adapter to take vintage lens and allow mounting on EF mount, that is then connected to the Canon EF-to-RF adapter

A chipped adapter to take vintage lens and allow mounting on EF mount, that is then connected to the Canon EF-to-RF adapter
Then again - I seem to recall that most of the chipped adapters don't work on RF bodies. Mine sure don't.