I have read Brian Smith's review that the A7RII + LA EA3 + Tamron 150-600mm (The Sony version of the Tamron) is a great combination for still-photography but I would really like to know if this combination works well for video. Specifically how well does autofocus work while recording?
I understand how most videographers prefer to use manual focus for documentaries and such, but while shooting wildlife, I'd much prefer to have a rig that autofocuses since wildlife is unpredictable.
I currently have been using a GH4 + Metabones + Canon mount Tamron 150-600mm and love the combo although I yearn for autofocus. I am contemplating moving to Sony if the Sony version of the Tamron works like I think it should.
Does anyone have first-hand experience?