Canon has issued a product advisory for the PowerShot S100 compact camera. According to Canon, some cameras are prone to a lens defect which is caused by a component part coming loose in the interior of the lens. This is more likely to happen in certain environmental conditions such as high temperature and/or humidity. Canon promises to repair affected cameras regardless of the warranty status. This appears to be a separate issue to the lens decentering problems that plagued our experience with the S100 when we reviewed it late last year

To see which serial numbers of the camera are affected and to find out how to get in touch with Canon in your region please read the full product advisory on the Canon USA website.