Post some images you took with your camera / possible camera problem
Could you be so kind to upload here some 8mpix images you took with your M2 (single sim) cameras. Images from my camera are blurry, and im just not sure, if this is standalone issue, or do you people get blurred images too.
I also have an old Xperia Arc S, images from Arc are far better than those from M2.
Thanks for your effort!