On top you can watch Max Yuryev take on the new Sony A6400. Below the new Matt Granger test:
Cinem5D also tested the camera and concluded:
Manufacturers often test new features in their professional lines first and then let them crawl down into their consumer/prosumer line – and it seems like this is what they did again on the A9, which is considered to have one of the fastest autofocus systems in the industry. (We haven’t tested Sony’s top-of-the-line A9 mirrorless camera simply because it’s not focused on video shooting at all – it lacks all Slog options.) So while the a6400 could have been that ordinary camera which resembles the a6300 and a6500, that autofocus killer feature alone is worth the extra look, especially as this is a glimpse to the future of all other cameras too!
And here we have a new Q&A from Gary Fong: