topic Re: Using RF Teleconverter with EF lenses in EF & RF Lenses

Using RF Teleconverter with EF lenses

Mangalmurti — Mon, 06 Oct 2025 17:23:27 GMT

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?

Re: Using RF Teleconverter with EF lenses

p4pictures — Mon, 06 Oct 2025 17:41:48 GMT

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.

Re: Using RF Teleconverter with EF lenses

deebatman316 — Mon, 06 Oct 2025 17:41:57 GMT

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.