Almost every Olympus camera I have tried/used since almost 10 years ago had at least one cluster of defective pixels on the sensor, those that refuse to stay black when you shoot a black frame with the lens cap on (at the lowest ISO at about 1/30) - and you see them. I do prefer Oly m4/3 cams to Panny ones due to many reasons, but finding one that is OK in this respect is really a challenge. A few days ago I dropped my E-PM1 from about 1 metre and the chair even cushioned the fall so I was shocked to discover the sensor dislodged on two axes and the shutter no longer operational. Repairing this would have probably cost as much as a new E-PM1, it is also not a straightforward arrangement in my country and I could have ended with a poor replacement sensor, so I just wrote the camera off and headed to the shops to buy a new one. A simple enough task, right? In fact I had to trawl through several outlets all over town before finally, in a state of utter frustration, I found a good one. Two days and about a dozen E-PM1s later I finally have as good a unit as the one that perished. I reiterate: I had to go through a dozen units (different retail chains, hence different batches) before finding one that showed no discernible hot/stuck pixels (most had more than one cluster). Surely this has got to be some kind of a record?? For testing I used the old little programme called DeadPixelTest (change the threshold in the left-hand box from 60 to 30 as this is empirically the border value for defective pixels that will be visible to you in real-life dark images), I am sure there are other similar software options out there instead of relying on your eyes. What I am really curious about is the 16-megapixel sensor in the newer Oly cams, I have not ventured into that territory yet but plan on doing so as the E-PM2 prices in Europe are finally beginning to drop towards the 400-euro mark. If you actually bother testing the cams you are buying for hot/stuck pixels, what has been your experience with newer 16 MP Olympus models?