Thanks so much, Show..it is as Sony promised re AF, and as bodies improve will provide a better experience. My 600g (with adapter) lenses all feel fine on the a7r too.
'They should have called it Sony Otus'
Never a truer word spoken in jest - high order correction is not compatible with small lens dimensions. Dr Nasse stated this in recent interviews, and this is the background to the Otus lenses and his other choices for top Zeiss lenses - 135/2 APO, 100MP, 21mm and 15mm Distagons. All are large, complex and fantastic. Sony is clearly going that way for some of their premium lineup, I am glad they had the courage to do it.
See that the heavier new FE primes have elements distributed evenly along the body? That is high order correction in action, they have used almost every millimeter in this 35mm. Canon's latest macro went from 12/8 to 15/12, it's something we will see more of in the coming 50Mp world.
Hopefully the 3D Kraft guy or someone else will do a real world comparo of these entrants, on the a7r to level the playing field somewhat:
FE 35/1.4; Nikon 35/1.4G; Canon 35/1.4L; Sigma ART 35/1.4; Samyang 35/1.4 AS; ZM 35/1.4; Summilux 35/1.4. Plus an RX1 for interest maybe. Sony now have two of the better fast(ish) 35s on the market, with another nice slower one in the 35/2.8.