In the last 10 days I saw a couple of pictures, some in compare to the current Zeiss and Sigma line and it looks very, very good.
The coating is clear and free of reflections like the *70-200,the AF speed is fast and with high response,handling great and if we get hopefully the AF firmware of the ll, we get a very nice and high end pro lens.
But optical quality is absolutely at the highest point.
1.4 is absolutely useful, from mid to the corners.
After the production step of this 50 dream, Pentax will start the pre-production of the 85, so it looks like next spring is very bokehlicious