RF to M Adapter?

[koenkooi]

I can attest to this.

Yes, the lens looks absurdly huge on that little body, but you're not taking pictures of your camera.

It's a nice combo to get 'reach' for insects:



That was taken using the Smallrig L-Bracket, that thin piece of machined wood over the grip helped a lot with ergonomics.

 

[Eagle Eye]

Why would you not use EF L glass? My EF 100-400 L Mark 2 gives stunning results on my M6 Mark 2.

Weight and portability. I never used super telephotos to begin with. I had the 16-35 f/4L, 24-70 f/4L, 70-300 f/5.6L, 50 f/1.2L, 135 f/2L, and the 100mm f/2.8L Macro and have gradually replaced them with the EF-M 11-22, 18-150, 55-250, 32, and the Sigma 56mm