Using RF Teleconverter with EF lenses

[Mangalmurti]

I have an R6, can i attach a 2x RF teleconverter, then an EF-RF converter ring, and then an EF lens, and have it function well?

[p4pictures · Accepted solution]

No this is not possible since the protruding front part of the RF teleconverter will not fit inside the EF to RF mount adapter. I know this as I tried it myself in the past. 

[deebatman316 · Accepted solution]

No it will NOT work this is by design. RF Mount teleconverters cannot be attached to any of the EF-RF Mount adapters. The only way this is going to work is EF-RF Mount Adapter > EF Mount Teleconverter > EF Mount lens compatible with teleconverters. So DO NOT attempt this the RF Mount teleconverter won’t mount at all to the mount adapter.