Readers of this forum and other gathering places where the X100 is being discussed in earnest may have read that some users cameras have developed a problem that appears to be a manufacturing defect in origin. After a certain amount of use, the aperture blades start to stick. Initially this appears to the user as a curious over-exposure problem, particularly noticeable when the lens is stopped down some. For example, if in aperture priority mode and the indicated exposure is 1/1000 of a second, stopping down one stop should result in an exposure of 1/500th of a second and indeed the camera's informational display will indicate as much. But since the aperture blades are either fully or partially stuck wide open, setting the aperture ring to any value than wide open results in no actual change in aperture at the time of exposure due to the sticky blade issue. Thus the image will be overexposed, instead of properly exposed, by one EV. Stop the lens down one more stop and the image will now be over exposed by 2 EV, and so on. You can visually inspect your lens - depress the shutter half way when the aperture control is set to various settings. Cameras afflicted with this issue may partially function - occasionally aperture blades will move as they should. There does seem to be indication that the condition worsens over time - blades that once moved fully eventually stop moving completely. There seem to be a sizeable number of afflicted owners/cameras - this poll is an attempt to determine how many cameras have been afflicted.