I received the SEL 50/1.8 from Amazon today. For info I think their 246€ price is pretty good, free shipping and 30 day free return window. Nice. The lens is sleek, very light (incredible how using this instead of a metal built legacy ligthens up the whoel package). My first reaction to the AF performane (tested tonight indoors in low light, so it should be much improved in daylight) was surprisingly positive. It snapped in focus pretty quickly. Unfortunately, that was short lived. There was much hunting involved, and at no time was able to keep up with my excited kid. Optical quality is absolutely excellent. Great sharpness, smooth bokeh, good color saturation and contrast. Real life sample.. Now, a Barbie doll test, with a few lenses. First, the SEL again : The Pentax 55/1.8 : For the record and comparison, my most used lens, the Rokkor MC 50/1.4, here at F2 : And a little unexpected guest to the party : Canon FL 85/1.8 !! So, how do I like the SEL ? Optically there is nothing to flaw. I'm sure in good light it's capable enough for AF. Is it an exciting lens (for me), one I feel like loving or using ?? Err... Having used MF exclusively for 3 months now I miss this part of the process, and AF is not fast or reliable enough to compensate for that. It's pretty likely to go back unless I suddenly fall in love with it in the next days.