Sport photographer Philip Palermo (Engadget) tested the A7rII in the possible least favorable scenario: Sports Photography. And the conclusion is surprisingly positive:

The A7R II held its own for the most part — despite not really being designed as a pro-level sports cam. I wish write times were peppier and hopefully Sony’s designers find ways to cram a bigger battery and, perhaps, a second memory card slot into this line’s compact frame. But overall, I came away impressed with how far Sony’s come with this line. Both the A7 bodies and first-party lens lineups are steadily improving. And thanks to the company’s rapid pace of deployment (six new models in two years) it seems like we’ve finally reached the point where “pretty damn good for a mirrorless camera” has turned into just “pretty damn good.”

And Dpreview updated their first impression review of the camera:

Looking at the a7R against the a7R II doesn’t reveal anything immediately mind-blowing. Linear resolution is increased by around 8%, but the differences go deeper than just a megapixel count. It may seem silly to focus at all on JPEG quality on such a heavy-hitting camera, but there are some changes worth mentioning. The JPEG engine for the a7R II shows great improvements over the a7R.
What difference does BSI technology make? Compared to the a7R there’s already an immediate difference. In fact, the gain is nearly a full stop over its predecessor. At 51,200, the maximum for the Nikon D810, the a7R II is again ahead by roughly one stop. Interesting, but what if the sensor is bigger and gathers more light, like the sensor in the Pentax 645Z? Almost unbelievably, they’re right on par with each other.

Ivo Scholz also posted his A7rII review:

I used to shoot with Canon, Nikon and Fujifilm. All of those have their advantages (well, except for Canon), but none of those camera manufacturers have come this close to a perfect camera. The A7RII is small, light and sturdy. It feels great, sounds nice and shoots wonderful pictures. Its EVF is by far the best I’ve seen and the autofocus is better than ever.

A7rII store list:
In USA: at Amazon, BHphoto, Adorama, SonyStore US, FocusCamera, Uniquephoto.
In Europe at Amazon DE, Amazon UK, Wex UK and ParkCameras.
In Asia at Digitalrev, CameraPro.

The A7sII preorder list:
In USA at Amazon, BHphoto, FocusCamera, Adorama.
In Europe at WexUK.
In Asia soon at Digitalrev.

Here are some test videos shot with the new DEO Saker Falcon Lite Canon EF to Sony FE adapter. You can preorder the lens directly at Deo (Click here) and within the next days on [shoplink 40637 ebay]eBay (Search link here)[/shoplink].

AF Speed Test II : Canon EF 24mm f/1.4 II on Sony a7rII camera

AF speed Test 1: Canon EF 50/1.2 L on Sony a7R II

DEO Saker Falcon Lite (beta) AF test on Sony a7R II

Image from DPreview showing the absent artifacts on the new 14 Bit RAW file (on the right)

DPreview is the first site having access to Sony’s new 14 Bit uncompressed RAW files. They tested it and those are the benefits they noticed:

1) No Artifacts on high contrast edges: “no longer introduce errors and artefacts around high-contrast edges.”
2) Very small Dynamic range improvement: “There’s possibly a tiny improvement if you try to brighten very deep shadows but the difference is so subtle that we don’t consider it to be photographically significant. But, even without this, the camera’s Raw files are more flexible than they were before.”

The files are twice as big as the previous compressed RAW files. And also very interesting: Sony’s new 14 BIT upgrade offers “uncompressed RAW files” and not “losslessly-compressed Raw”. The reasons are limitations of working with the cameras’ existing processors. But Sony said they will investigate the possibility to add “lossless compression system if there’s sufficient user demand.”

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A7rII store list:
In USA: at Amazon, BHphoto, Adorama, SonyStore US, FocusCamera, Uniquephoto.
In Europe at Amazon DE, Amazon UK, Wex UK and ParkCameras.
In Asia at Digitalrev, CameraPro.

The A7sII preorder list:
In USA at Amazon, BHphoto, FocusCamera, Adorama.
In Europe at WexUK.
In Asia soon at Digitalrev.