If I could get hold of an R5 and then a lens, I'd tell you! But, don't hold your breath.Ah fantastic to see it getting out. I am most definitely interested to see how it compares at 500mm to the Nikon 500 5.6. Well whole system vs whole system. I hope you’ll very much enjoy yours.
I will probably rent both setups soon. There is still that niggle with the EVF for fleeing animals. I have a collection of RAW images from a 500PF on a D850, now this lens is shipping I can do something of a comparison soon. It comes down to ISO 6400 on the D850 vs ISO 8000 on the R5. Then imagine sharpness and colour. But non the less @koenkooi gratz and enjoy your new lens!If I could get hold of an R5 and then a lens, I'd tell you! But, don't hold your breath.