<p>As to your question of when did the problem occur. I think likely when I was using the camera photographing hoop dancing at the Heard Museum in Phoenix (first real use of the camera). I had spent the first few weeks of ownership working through the menus and settings. Now, after seeing photographs of the apparently prevalent sun scorched evf issue, I realize that my blobs (actually yellowish green) are nearly the same. This is ominous. While I intend to send the camera in for repairs, I am putting aside my intention to buy pro grade lenses for the em1. Instead, I will hang onto my d300 and brilliant 70-200 lens. I am getting near 75, so I went for the em1 entirely because of the weight/size issues. However, a damaged evf (In a camera dependent on electronics) is a serious issue. My use of the em1 (it was outside and sunny on a hot day) was entirely within normal practice. I did not leave the camera front down and exposed to the sun for any length of time. I cannot of course remember exactly how I held the camera, but it was action shooting and I may well have exposed the evf to direct sunlight at times. Nothing though that I wouldn't do with any camera and I have owned many fine ones. Worried. Frank</p>