A really good processing, together with the class optical performance. I use the 50mm of my A77 and realized a dream couple. Compared to the 30mm 1.4 (new model that I already had, but I did not keep it) better by far performance at maximum aperture. Dimmed with very good sharpness, but also at f 1.7, the 50mm compared needs absolutely nothing to hide new lenses. The result is sharp and very clear images. The AF is quick and accurate :-). Also at the processing there is nothing to complain about.
Now for the pricing, I have for my 50mm 1.7 just 100.- Euro paid a really good price for such a great lens.
