My experience is with Fringer/Viltrox.Tamron G1 150/600,Sigma Sport 150/600,Canon L 70/300,Canon crop 55/250STM and Fuji 50/230 version 2(3 copies all good).I shoot birds when theres no surf.
With the latest Fuji bodies its all good,Ive observed a pro that I know with a D500.He has unlimited buffer due to the card thats in it.
Fuji shoots 20fps @ 26mp or 30 fps @16mp.Nikon is in the slow lane.
Fuji is streets ahead in moving pictures as well. The 300 and 500 primes are under development at the moment,in the meantime Canon covers that.
The other AF adapters Commelite,FotoDiox work well according to some reviewers.
Originally posted by automorphism Please don't get offended.
There are many opinions"out there"...who you believe is your choice.
Neither X series or D500 is perfect but highly capable with people who know how to get the most out of them.