I cleaned the lens thoughly. Camera is a canon point and shoot A85 Not sure if its the ccd or something on back of the lense. Tried taking it apart but these camera's are damn hard to take apart. Was able to open it up enough to blow some canned compressed air inside but that didn't work. If it's a ccd electronic problem it would not be worth going any further, if it's dust then I will try to get it apart without breaking it, hopefully Blemish is on the same spot on all photo's. Does anybody know what it is?