"Black spots on LCD and dust inside. Is it a factory defect?"に関する回答I've had this problem for several years. A friend with the same problem told me a few months ago that it was due to dust. I looked up several posts on the problems on how to fix it, and ordered some metallic tape to reseal the screen. I was not able to get to it right away. The funny thing is, after being present near the middle of my screen for several years, the spots/splotches have suddenly migrated almost completely off! Nothing had changed in the interim (no change in environment, cleanliness, never any smoke, etc.) They are now at the top right corner of my screen, but at least now they will not interfere with editing of photos. I was not looking forward to taking the screen apart, but I guess I will hold onto the tape for a while.