EF-R Adapter vs RF native lenses

[KennyRay]

Hi folks. I have a couple EF lenses I decided to use with my RP (EF16-35mm 1:4L and EF100-400mm). Is there a significant difference in performance or image quaility converting the EF lenses to RF mount? 

[kvbarkley · Accepted solution]

No, there is no degradation of the image since there is no glass in the adapter.

But I would get a Canon adapter for electronics compatibility.

And note that the camera will limit the sensor area to crop frame if you use an EF-S lens.

[ebiggs1]

If I had an R camera and EF lenses I would buy the adapter.  But I hate adapters even though they may not harm IQ or function. So, it would not be an option I would embrace. An adapter whether it works or not is just another gadget you need to keep track of. Just one of the pains of switching systems.

BTW, I don't like tel-cons either!

[ebiggs1]

On the other hand if you no longer intend on using your EF camera any longer, why not sell your EF gear?  Start the new R system off right with R lenses!

[KennyRay]

Thanks folks!