BB, I honestly have no idea. Perhaps an evolution of the FW or perhaps I had a lemon back then. But the IQ of this camera feels very different. Also, in the previous camera I was unable to process RAW files except through Olympus Master 2, which spit out JPGs not much different at all from the in-camera JPGs. Now I am experimenting with RAW Developer and Lightroom / Photoshop for RAW processing.So Andrew what do you think accounts for the improvements? Was it a firmware update?