The Canon RF 50mm F/1.2 L lens is an amazing feat of engineering. Its a big honker of a lens, but is actually nicely balanced on the Canon EOS R5. The two make an incredible combo. The lens is really sharp, all the way down to its widest aperture. The lens focuses fast, no hunting, even in low light. There is no IS but who cares.  I picked up my copy of this beautiful beast in 2021. I have not even begun to explore what this lens can do.....