So I just discovered on a whim that the A7Rii will autofocus quite nicely with the EF 100-400 (mk1) via Metabones.
I don't know why I was under the impression that it didn't work. So now I have up to 400mm (plus cropping ability) and I can definitely put my 6D up for sale.
Headed down to the beach to test out the AF-S and AF-C with the 100-400. I must say it did well enough for my uses. Might not be the combo to use for sports shooters, but I only do that sort of thing occasionally.
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© Puckman [SHARE LINK] THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff. Image hosted by forum (
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© Puckman [SHARE LINK] THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff. Both shot at 400mm using AF-C and cropped in post.
Who says the A7Rii can't do sports!

Sony A7RII and a bunch of lenses.