I was wondering if anyone had an experience with the Sony A7III or even A9 since it uses the same AF system in relation to the Canon 5DMKIV? How well does it AF moving subjects, as well as low light?
I would be using native Sony glasses, as I have tried adapter rings before but it was not reliable enough.
I've never shot the 5DIV, but the a9 tracks better than the 5DIII. I shot a couple of weddings with the a9 and lowlight AF is very good, even with adapted glass. (a7rIII doesn't do as well in low light with adapted glass)



