Resourcemagonline posted the content of an interesting chat with Sony US manager Mark Weir:

1) Why the A7rII has tilt and not a flip out screen:
they made a conscious choice to make their rear LCD a tilt screen rather than a full flip-out screen. They believed that the compactness of the camera trumped the space it would take to add a hinge and provide a full flip-out screen.

2) Why the A7rII doesn’t record 10bit video:
The inability to shoot 10-bit is because of the processor. The BIONZ X processor in the Alpha series cameras can’t actually process anything past 8-bit 422.

3) Why the A7rII cannot do RX100m4 alike frame rates at 1080p:
The sensor Sony is using in the cameras that have HFR, the RX’s EXMOR RS sensor, is a stacked CMOS sensor. Such a sensor uses a different means by which the info is taken off the photo sensitive layer of the imager: the destination is behind the imager instead of going around it. The upside is that it is a transfer that is drastically faster than other means, and it opens a drastically larger pipe for information. Transfer rates are up to 5x better than before.
The EXMOR R sensor found in the a7r Mark II does not enjoy that structure, so cropping in on the sensor would not realize the transfer rate necessary nor does the a7R II have the D-RAM required for it to process that amount of data. So the problem is two fold: the data can’t flow off the sensor fast enough, and there is no place to put that data even if it could.

4) Difference between Exmor RS (Stacked) and Exmor R sensors:
The capabilities of the EXMOR RS sensor are meant to be fast readout, and that’s where it excels. The EXMOR R sensor excels at balance between sensitivity and high resolution.

5) So why can the GH4 handle slow motion, internal 4K and 10-bit 422 recording with an external recorder?
Well, the GH4 is bigger (if you can believe it, yes it totally is bigger than the Alpha series cameras) and therefore their issues with thermal management (which, if you read around you’ll find is a common complaint even with the newer, beefier bodies found in the a7 and a7R II) are not nearly as extreme. Also, Sony has added that internal sensor stabilizer, meaning they’ve got even less room to use in that tiny body than you might think. And then of course you look at Panasonic’s processor, which however it works, manages to do the things the Sony one cannot, given the size of the sensor and the heat situation with the body.

And here is a very long list of A7rII news and tests:
Model Shoot with Sony A7RII at Traveljournalist.
German A7rIi review at mactechnews.
A7rII review at Thisweekinphoto.
Sony Alpha A7R Mark II Sample Photos (ePhotozine).
A7RII battery drain in Power Save Mode (SonyAlphaForum)
A7s / A7R II off-camera HSS Elinchrom flash confuuuuusion …. (SonyAlphaForum).
A7rII clunks when I switch the camera off !!?? (SonyAlphaForum).
Confessions of a Canon Fanboy – A Review of the Sony A7RII (Robert Turchick).
A7R (ICLE-7R) or the A7RII (ICLE-7RM2) – Initial Impressions by Richard Fox.
Anoynmous: “Great A7rii video https://www.youtube.com/watch?v=oYGM5u35Gcw”

A7rII preorder list:
In USA: at Amazon, BHphoto, Adorama, SonyStore US, FocusCamera, Uniquephoto.
In Europe at Sony DE, UK, FR, IT, ES, NL, BE, CH, AT, SE, FI, NO, PT. Wex UK.
In Asia at Digitalrev, CameraPro.

A7rII case:
Gariz leather case in [shoplink 39113 ebay]Black (Click here)[/shoplink], [shoplink 39108 ebay]Camel (Click here)[/shoplink], [shoplink 39110 ebay]Orange (Click here)[/shoplink], [shoplink 39111 ebay]Brown (Click here)[/shoplink] and [shoplink 39112 ebay]Red (Click here)[/shoplink]. Also available on Amazon US (Click here).
Gariz Alcantara case in [shoplink 39094 ebay]Black (Click here)[/shoplink] and [shoplink 39095 ebay]Red (Click here)[/shoplink]. Also available on Amazon US (Click here).
Lim’s case in [shoplink 39107 ebay]Black (Click here)[/shoplink], [shoplink 39102 ebay]Brown (Click here)[/shoplink], [shoplink 39103 ebay]Red (Click here)[/shoplink], [shoplink 39104 ebay]Yellow (Click here)[/shoplink], [shoplink 39105 ebay]Navy Blue (Click here)[/shoplink] and [shoplink 39106 ebay]Khaki (Click here)[/shoplink]. Also available on Amazon US (Click here).

A couple of days ago I posted an article on the Batis shipment shortage (Click here). Some readers reported that their preorder at Digitalrev got canceled because “our suppliers are not able to confirm with us when the next available stock can be ordered” (Source: Pete). Some other reported that their May 11 preorder at BH still didn’t ship and there is still no ship date (Source: Cbw).

Finally we have good news to report: After reading our article Zeiss released an official statement to clarify the future availability of Batis lenses. We deeply thank Zeiss for the helpful note! It’s a very good example of how to communicate with your own customers. Here is their text via Zeiss FB page:

The worldwide positive feedback from the first product reviews about the ZEISS Batis lenses and the demand for the lenses has been overwhelming.
We made the first shipments of the ZEISS Batis lenses to our global distribution partner network in mid-July 2015. Additional shipments were made in August 2015 and a more substantial volume of lenses is scheduled in September 2015, thanks to an expansion of the production capacity. This expansion will help serving the global markets more efficiently in the coming months.
At this time, the global demand is much higher than our current supply and we anticipate a wait of several months for orders which are placed now. If you have already ordered the lens from one of our dealers, then we will ship on a first-in, first-out basis depending on when the order was received. It is not possible for us to accurately predict when you will receive your order, since this is also dependent on our international distribution partners’ and local dealers’ allocation process which we have no influence over. In general, orders placed in late April and May should be delivered in the coming weeks, with later orders shipped in the months of October and November.
If you are interested, order immediately so as to obtain your ZEISS Batis lenses as soon as possible.

Batis store links:
Zeiss Batis 85mm f/1.8 lens in US at Adorama, Bhphoto. In Eu at Amazon DE, WexUK. In Asia at Digitalrev.
Zeiss Batis 25mm f/2.0 lens at Adorama, Bhphoto. In EU at Amazon DE, WexUK. In Asia at Digitalrev.