Why are the manufacturers sending cameras back that aren perfectly clean when they were sent in for a cleaning?.
(A) I’m not here to make excuses for the manufacturers, but here is what is happening in some of the cases. You must look at some of the facts. Your camera has been used and it now has dust on it and in it. It is not economical or necessary to fully disassemble your camera and remove every stray piece of dust. Then, once the camera’s sensor is cleaned, the camera has to be shipped back to you. If you have ever seen UPS or the USPS at work, you know how the packages get treated like footballs. This shipping/football playing dislodges dust particles that end up floating around and then fall onto the sensor. This is why I recommend you do the cleaning yourself or walk the camera into a “Camera Repair” facility that does it in-house. If they all missed a spot that was there before, shame on them, because they more than likely were not using the Methanol and Swab method of cleaning.
