I am now back to Micro Four Thirds. I bought Olympus OM-D E-M5 with Olympus M.ZUIKO 45/1.8 and Sigma 30/2.8 lenses. In addition, I have my old Panasonic lenses, 20/1.7 and 45-200 zoom. That's quite a cool set!
First impression with OM-D was that it is small! Smaller than I really thought of. But that's a good thing. Of course it feels small after D600.
Then the absolutely best thing. The autofocus is blazingly fast! I mean DSLR-fast. No, actually it is faster than that in real use. At least so in my hands and that's of course what really counts here. I had time to test OM-D yesterday only with 45/1.8 lens but at least with it I can truly say that this camera has the fastest AF I have ever used. Period.
Also IQ seems to be top notch. 45/1.8 is very sharp wide open. Very, very nice. Also noise seems to be very controllable at least up to ISO 3200, maybe up to 6400. That's a very good achievement for m4/3 sensor. That together with fast lenses which provide just perfect DoF wide open, and the best image stabilization system I have ever encountered, I really think OM-D and m4/3 system is deserving those praises all over the photography web pages.
And by the way, I just sold my Sigma DP2 Merrill. 🙂 I thought that it would be difficult to sell but…