If they would hurry up and get Samsung sensors up to speed, I'd be looking a lot more seriously at this system. The sensor in the current NX cameras is still a slight downgrade in performance from the first-generation sensor in the K20D I used to use (modifications they made for faster readout and video in the K-7 and NX cameras compromised the IQ and they still haven't fixed it yet), and while I liked the K20D a lot while I had it, the modern generation of sensors from Sony and Canon just leave it in the dust in too many ways. Even the latest 4/3 sensors have shown results on par with (GH1 and some would argue EPL1 and ilk) or superior to (GH2) those from the NX cameras, and until they do something about that, I guess my enthusiasm for what the system could be will continue to greatly outstrip my enthusiasm for what it presently is.
It's not like it should even be all that difficult. An analysis I came across revealed that the analog-digital converters used on the K20D's sensor were responsible for nearly all the readout noise present, and modifications to provide 4-channel readout have only increased noise coming from the readout circuitry. More modern components could potentially lower the noise floor significantly (yielding better DR) without even updating the photosensor design itself (though after several years now I'd say that's due as well).
), like Sonys Zeiss 16-80 3.5-4.5.
