The edges are excellent from f/2.8 to f/5.6, very good from f/8 to f/16 and softening at f/22. At 70mm, central sharpness is outstanding from f/2.8 to f/8, excellent at f/11 and very good at f/16 ...

For the most critical uses, then the new Sony lens will score on its performance, and for some nothing less will do. For those of us with less deep pockets, it might have to remain an aspiration ...