Yes, you can buy a Canon STM half-toss for half the price, but I compared them head-on (I have both systems, I donโt look at DXO) - and Canon merges it clean. Is Sonya sharp at the edges already at f1,8? boots at 1.8 the edges are wildly soapy. Especially big difference in the far field. Yes, landscapes, of course, are not shot outdoors - but what if it's dark? The stock doesn't work. Portraits are normal for both. The bokeh twists a little, pleasant, sometimes even Helios 44 resembles, but with a more moderate twist. The picture is definitely more interesting and better than the cropped analogue (there are no such XA and higher sharpness). I canโt say anything about slowness, I have the first Sonya, she is a brake in itself. It seemed to me that it focuses rather slowly, but the confirmation works when focusing has not yet completely taken place, which saves a few milliseconds, and I was pleased with the accuracy - there are almost no misses.