A99 has an all new dual PD AF system. I quote their official annoucement:
The new α99 digital camera features a unique dual AF system, a world’s first for digital cameras. This camera’s main focusing system – a 19-point AF system with 11 cross sensors - is complemented by a 102-point focal plane phase-detection AF sensor overlaying the main image sensor.
So. Let me get this straight. The only reason for the pellicle mirror and dumping 1/3rd of the available light (which counteracts FF's main advantage) is PDAF which they have put on the sensor anyhow. As well.
This will be creamed for high ISO by even the RX1.
And yes sony make nikon sensors, nikon add their own magic to them which is why in every implementation so far nikon have been ahead of sony on IQ by a fair margin.


